Document:

EXHIBIT 10.1

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Securities and Exchange Commission
Washington, D.C. 20549

Gentlemen:

We were previously the independent accountants for SITI-Sites.com, Inc., and on
May 25, 2000 we reported on the consolidated financial statements of
SITI-Sites.com, Inc. and subsidiary as of and for the year ended March 31, 2000.
On October 2, 2000, we informed SITI-Sites.com, Inc. that we had merged with
McGladrey & Pullen, LLP and we would no longer be the independent accountants of
SITI-Sites.com, Inc. We have read SITI-Sites.com, Inc. statements included under
Item 4 of its Form 8-K for October 9, 2000 and we agree with such statements.

/s/ Edward Isaacs & Company LLP
-------------------------------
White Plains, New York
October 4, 2000<PAGE>

                                                                    Exhibit 10.3

                                PHONE.COM, INC.

                                1996 STOCK PLAN

                  (As amended and restated in December 1999)

     1.   Purposes of the Plan.  The purposes of this Stock Plan are to attract
          --------------------
and retain the best available personnel for positions of substantial
responsibility, to provide additional incentive to Employees and Consultants of
the Company and its Subsidiaries and to promote the success of the Company"s
business.  Options granted under the Plan may be incentive stock options (as
defined under Section 422 of the Code) or nonstatutory stock options, as
determined by the Administrator at the time of grant of an option and subject to
the applicable provisions of Section 422 of the Code, as amended, and the
regulations promulgated thereunder.  Stock purchase rights may also be granted
under the Plan.

     2.   Definitions.  As used herein, the following definitions shall apply:
          -----------

          (a) "Administrator" means the Board or any of its Committees appointed
               -------------
pursuant to Section 4 of the Plan.

          (b) "Applicable Laws" means the legal requirements relating to the
               ---------------
administration of stock option and restricted stock purchase plans under
applicable U.S. state corporate laws, U.S. federal and applicable state
securities laws, the Code, any stock exchange rules or regulations and the
applicable laws of any other country or jurisdiction where Options or Stock
Purchase Rights are granted under the Plan, as such laws, rules, regulations and
requirements shall be in place from time to time.

          (c) "Board" means the Board of Directors of the Company.
               -----

          (d) "Code" means the Internal Revenue Code of 1986, as amended.
               ----

          (e) "Committee" means the Committee appointed by the Board of
               ---------
Directors in accordance with paragraph (a) of Section 4 of the Plan.

          (f) "Common Stock" means the Common Stock of the Company.
               ------------

          (g) "Company" means Phone.com, Inc., a Delaware corporation (formerly
               -------
"Unwired Planet, Inc.").

          (h) "Consultant" means any person, including an advisor, who is
               ----------
engaged by the Company or any Parent or Subsidiary to render services and is
compensated for such services, and any Director of the Company whether
compensated for such services or not.

          (i) "Continuous Status as an Employee or Consultant" means the absence
               ----------------------------------------------
of any interruption or termination of service as an Employee or Consultant.
Continuous Status as an Employee or Consultant shall not be considered
interrupted in the case of:  (i) sick leave;
<PAGE>

(ii) military leave; (iii) any other leave of absence approved by the
Administrator, provided that such leave is for a period of not more than ninety
(90) days, unless reemployment upon the expiration of such leave is guaranteed
by contract or statute, or unless provided otherwise pursuant to Company policy
adopted from time to time; or (iv) in the case of transfers between locations of
the Company or between the Company, its Subsidiaries or its successor. For
purposes of this Plan, a change in status from an Employee to a Consultant or
from a Consultant to an Employee will not constitute an interruption of
Continuous Status as an Employee or Consultant.

          (j) "Director" means a member of the Board.
               --------

          (k) "Employee" means any person (including if appropriate, any Named
               --------
Executive, Officer or Director) employed by the Company or any Parent or
Subsidiary of the Company, with the status of employment determined based upon
such minimum number of hours or periods worked as shall be determined by the
Administrator in its discretion, subject to any requirements of the Code.  The
payment of a director"s fee by the Company shall not be sufficient to constitute
"employment" by the Company.

          (l) "Exchange Act" means the Securities Exchange Act of 1934, as
               ------------
amended.

          (m) "Fair Market Value" means, as of any date, the value of Common
               -----------------
Stock determined as follows:

              (i)   If the Common Stock is listed on any established stock
exchange or a national market system including without limitation the National
Market System of the National Association of Securities Dealers, Inc. Automated
Quotation ("Nasdaq") System, its Fair Market Value shall be the closing sales
           --------
price for such stock (or the closing bid, if no sales were reported, as quoted
on such exchange or system for the last market trading day prior to the time of
determination) as reported in The Wall Street Journal or such other source as
the Administrator deems reliable;

              (ii)  If the Common Stock is quoted on the Nasdaq System (but not
on the National Market System thereof) or regularly quoted by a recognized
securities dealer but selling prices are not reported, its Fair Market Value
shall be the mean between the high bid and low asked prices for the Common Stock
or;

              (iii) In the absence of an established market for the Common
Stock, the Fair Market Value thereof shall be determined in good faith by the
Administrator.

          (n) "Incentive Stock Option" means an Option intended to qualify as an
               ----------------------
incentive stock option within the meaning of Section 422 of the Code, as
designated in the applicable written option agreement.

          (o) "Listed Security" means any security of the Company that is listed
               ---------------
or approved for listing on a national securities exchange or designated or
approved for designation as a national market system security on an interdealer
quotation system by the National Association of Securities Dealers, Inc.

                                      -2-
<PAGE>

          (p)  "Named Executive" means any individual who, on the last day of
                ---------------
the Company"s fiscal year, is the chief executive officer of the Company (or is
acting in such capacity) or among the four most highly compensated officers of
the Company (other than the chief executive officer). Such officer status shall
be determined pursuant to the executive compensation disclosure rules under the
Exchange Act.

          (q)  "Nonstatutory Stock Option" means an Option not intended to
                -------------------------
qualify as an Incentive Stock Option, as designated in the applicable written
option agreement.

          (r)  "Officer" means a person who is an officer of the Company within
                -------
the meaning of Section 16(a) of the Exchange Act and the rules and regulations
promulgated thereunder.

          (s)  "Option" means a stock option granted pursuant to the Plan.
                ------

          (t)  "Optioned Stock" means the Common Stock subject to an Option or a
                --------------
Stock Purchase Right.

          (u)  "Optionee" means an Employee or Consultant who receives an Option
                --------
or Stock Purchase Right.

          (v)  "Parent" means a "parent corporation", whether now or hereafter
                ------
existing, as defined in Section 424(e) of the Code.

          (w)  "Plan" means this 1996 Stock Plan.
                ----

          (x)  "Reporting Person" means an Officer, Director, or greater than
                ----------------
ten percent shareholder of the Company within the meaning of Rule 16a-2 under
the Exchange Act, who is required to file reports pursuant to Rule 16a-3 under
the Exchange Act.

          (y)  "Restricted Stock" means shares of Common Stock acquired pursuant
                ----------------
to a grant of a Stock Purchase Right under Section 12 below.

          (z)  "Share" means a share of the Common Stock, as adjusted in
                -----
accordance with Section 14 below.

          (aa) "Stock Purchase Right" means the right to purchase Common Stock
                --------------------
pursuant to Section 12 below.

          (bb) "Subsidiary" means a "subsidiary corporation", whether now or
                ----------
hereafter existing, as defined in Section 424(f) of the Code.

          (cc) "Ten Percent Holder" means a person who owns stock representing
                ------------------
more than ten percent (10%) of the voting power of all classes of stock of the
Company or any Parent or Subsidiary.

     3.   Stock Subject to the Plan.  Subject to the provisions of Section 14 of
          -------------------------
the Plan, the

                                      -3-
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maximum aggregate number of shares which may be optioned and sold under the Plan
is 15,468,850 shares of Common Stock, plus an automatic annual increase on the
first day of each of the Company's fiscal years beginning in 2000 and ending in
2006 equal to the lesser of (i) 3,000,000 Shares, (ii) four percent (4%) of the
Shares outstanding on the last day of the immediately preceding fiscal year, or
(iii) such lesser number of shares as is determined by the Board of Directors.
The Shares may be authorized, but unissued, or reacquired Common Stock.

          If an Option should expire or become unexercisable for any reason
without having been exercised in full, the unpurchased Shares which were subject
thereto shall, unless the Plan shall have been terminated, become available for
future grant under the Plan.  Shares repurchased by the Company pursuant to any
repurchase right which the Company may have shall not be available for future
grant under the Plan.

     4.   Administration of the Plan.
          --------------------------

          (a) General.  The Plan shall be administered by the Board or a
              -------
Committee, or a combination thereof, as determined by the Board.  The Plan may
be administered by different administrative bodies with respect to different
classes of Optionees and, if permitted by the Applicable Laws, the Board may
authorize one or more officers (who may (but need not) be Officers) to grant
Options or Stock Purchase Rights to Employees and Consultants.

          (b) Administration With Respect to Reporting Persons.  With respect to
              ------------------------------------------------
Options granted to Reporting Persons and Named Executives, the Plan may (but
need not) be administered so as to permit such Options to qualify for the
exemption set forth in Rule 16b-3 and to qualify as performance-based
compensation under Section 162(m) of the Code.

          (c) Committee Composition.  If a Committee has been appointed pursuant
              ---------------------
to this Section 4, such Committee shall continue to serve in its designated
capacity until otherwise directed by the Board.  From time to time the Board may
increase the size of any Committee and appoint additional members thereof,
remove members (with or without cause) and appoint new members in substitution
therefor, fill vacancies (however caused) and remove all members of a Committee
and thereafter directly administer the Plan, all to the extent permitted by the
Applicable Laws and, in the case of a Committee administering the Plan pursuant
to Section 4(b) above, to the extent permitted or required by Rule 16b-3 and
Section 162(m) of the Code.

          (d) Powers of the Administrator.  Subject to the provisions of the
              ---------------------------
Plan and in the case of a Committee, the specific duties delegated by the Board
to such Committee, the Administrator shall have the authority, in its
discretion:

              (i)    to determine the Fair Market Value of the Common Stock, in
accordance with Section 2(m) of the Plan;

              (ii)   to select the Consultants and Employees to whom Options and
Stock Purchase Rights may from time to time be granted hereunder;

              (iii)  to determine whether and to what extent Options and Stock
Purchase Rights or any combination thereof are granted hereunder;

                                      -4-
<PAGE>

              (iv)   to determine the number of shares of Common Stock to be
covered by each such award granted hereunder;

              (v)    to approve forms of agreement for use under the Plan;

              (vi)   to determine the terms and conditions, not inconsistent
with the terms of the Plan, of any award granted hereunder, which terms and
conditions include but are not limited to the exercise or purchase price, the
time or times when Options or Stock Purchase Rights may be exercised (which may
be based on performance criteria), any vesting acceleration or waiver of
forfeiture restrictions, and any restriction or limitation regarding any Option,
Optioned Stock, Stock Purchase Right or Restricted Stock, based in each case on
such factors as the Administrator, in its sole discretion, shall determine;

              (vii)  to determine whether and under what circumstances an Option
may be settled in cash under subsection 10(g) instead of Common Stock; and

              (viii) to determine the terms and restrictions applicable to Stock
Purchase Rights and the Restricted Stock purchased by exercising such Stock
Purchase Rights.

          (e) Effect of Administrator"s Decision.  All decisions, determinations
              ----------------------------------
and interpretations of the Administrator shall be final and binding on all
Optionees and any other holders of any Options or Stock Purchase Rights.

     5.   Eligibility.
          -----------

          (a) Recipients of Grants.  Nonstatutory Stock Options and Stock
              --------------------
Purchase Rights may be granted to Employees and Consultants.  Incentive Stock
Options may be granted only to Employees.  An Employee or Consultant who has
been granted an Option or Stock Purchase Right may, if he is otherwise eligible,
be granted additional Options or Stock Purchase Rights.

          (b) Type of Option.  Each Option shall be designated in the written
              --------------
option agreement as either an Incentive Stock Option or a Nonstatutory Stock
Option.  However, notwithstanding such designations, to the extent that the
aggregate Fair Market Value of the Shares with respect to which Options
designated as Incentive Stock Options are exercisable for the first time by any
Optionee during any calendar year (under all plans of the Company or any Parent
or Subsidiary) exceeds $100,000, such excess Options shall be treated as
Nonstatutory Stock Options.  For purposes of this Section 5(b), Incentive Stock
Options shall be taken into account in the order in which they were granted, and
the Fair Market Value of the Shares shall be determined as of the time the
Option with respect to such Shares is granted.

          (c) Employment Relationship.  The Plan shall not confer upon any
              -----------------------
Optionee any right with respect to continuation of employment or consulting
relationship with the Company, nor shall it interfere in any way with such
Optionee"s right or the Company"s right to terminate his or her employment or
consulting relationship at any time, with or without cause.

     6.   Term of Plan.  The Plan shall become effective upon the earlier to
          ------------
occur of its

                                      -5-
<PAGE>

adoption by the Board of Directors or its approval by the stockholders of the
Company as described in Section 20 of the Plan. It shall continue in effect for
a term of ten (10) years unless sooner terminated under Section 16 of the Plan.

     7.   Term of Option.  The term of each Option shall be the term stated in
          --------------
the Option Agreement; provided, however, that the term shall be no more than ten
(10) years from the date of grant thereof.  However, in the case of an Incentive
Stock Option granted to an Optionee who, at the time the Option is granted, is a
Ten Percent Holder, the term of the Option shall be five (5) years from the date
of grant thereof or such shorter term as may be provided in the Option
Agreement.

     8.   Limitation on Grants to Employees.  Subject to adjustment as provided
          ---------------------------------
in Section 14 below, the maximum number of Shares which may be subject to
Options and Stock Purchase Rights granted to any one Employee under this Plan
for any fiscal year of the Company shall be 2,000,000 Shares.

     9.   Option Exercise Price and Consideration.
          ---------------------------------------

          (a) The per share exercise price for the Shares to be issued pursuant
to exercise of an Option shall be such price as is determined by the Board, but
shall be subject to the following:

              (i)   In the case of an Incentive Stock Option

                    (A) granted to an Employee who, at the time of the grant of
such Incentive Stock Option, is a Ten Percent Holder, the per Share exercise
price shall be no less than 110% of the Fair Market Value per Share on the date
of grant.

                    (B) granted to any other Employee, the per Share exercise
price shall be no less than 100% of the Fair Market Value per Share on the date
of grant.

              (ii) In the case of a Nonstatutory Stock Option

                   (A) granted prior to the date, if any, on which the Common
Stock becomes a Listed Security to a person who, at the time of the grant of
such Option, is a Ten Percent Holder, the per Share exercise price shall be no
less than 110% of the Fair Market Value per Share on the date of the grant.

                   (B) granted to a person who, at the time of the grant of such
Option, is a Named Executive of the Company, the per share Exercise Price shall
be no less than 100% of the Fair Market Value on the date of grant if such
Option is intended to qualify as performance-based compensation under Section
162(m) of the Code; or

                   (C) granted prior to the date, if any, on which the Common
Stock becomes a Listed Security to any person other than a Named Executive or a
Ten Percent Holder, the per Share exercise price shall be no less than 85% of
the Fair Market Value per Share on the date of grant if required by Applicable
Law and, if not so required, shall be such price as is determined by the
Administrator.

                                      -6-
<PAGE>

          (b) The consideration to be paid for the Shares to be issued upon
exercise of an Option, including the method of payment, shall be determined by
the Administrator (and, in the case of an Incentive Stock Option, shall be
determined at the time of grant) and may consist entirely of (1) cash, (2)
check, (3) promissory note, (4) other Shares which (x) in the case of Shares
acquired upon exercise of an Option either have been owned by the Optionee for
more than six months on the date of surrender or were not acquired, directly or
indirectly, from the Company, and (y) have a Fair Market Value on the date of
surrender equal to the aggregate exercise price of the Shares as to which said
Option shall be exercised, (5) authorization from the Company to retain from the
total number of Shares as to which the Option is exercised that number of Shares
having a Fair Market Value on the date of exercise equal to the exercise price
for the total number of Shares as to which the Option is exercised, (6) delivery
of a properly executed exercise notice together with such other documentation as
the Administrator and the broker, if applicable, shall require to effect an
exercise of the Option and delivery to the Company of the sale or loan proceeds
required to pay the exercise price, (7) by delivering an irrevocable
subscription agreement for the Shares which irrevocably obligates the option
holder to take and pay for the Shares not more than twelve months after the date
of delivery of the subscription agreement, (8) any combination of the foregoing
methods of payment, (9) or such other consideration and method of payment for
the issuance of Shares to the extent permitted under Applicable Laws.  In making
its determination as to the type of consideration to accept, the Board shall
consider if acceptance of such consideration may be reasonably expected to
benefit the Company.

     10.  Exercise of Option.
          ------------------

          (a) Procedure for Exercise; Rights as a Stockholder.  Any Option
              -----------------------------------------------
granted hereunder shall be exercisable at such times and under such conditions
as determined by the Administrator, consistent with the terms of the Plan, and
reflected in the Option Agreement, including vesting requirements and/or
performance criteria with respect to the Company and/or the Optionee; provided
however that, if required by the Applicable Laws, any Option granted prior to
the date, if any, upon which the Common Stock becomes a Listed Security shall
become exercisable at a rate of at least 20% per year over five years from the
date the Option is granted.  In the event that any of the Shares issued upon
exercise of an Option (which exercise occurs prior to the date, if any, upon
which the Common Stock becomes a Listed Security) should be subject to a right
of repurchase in the Company's favor, such repurchase right shall, if required
by the Applicable Laws, lapse at the rate of at least 20% per year over five
years from the date the Option is granted.  Notwithstanding the above, in the
case of an Option granted to an officer (including but not limited to Officers),
Director or Consultant, the Option may become exercisable, or a repurchase
right, if any, in favor of the Company shall lapse, at any time or during any
period established by the Administrator.  The Administrator shall have the
discretion to determine whether and to what extent the vesting of Options shall
be tolled during any unpaid leave of absence; provided however that in the
absence of such determination, vesting of Options shall be tolled during any
such leave.

              An Option may not be exercised for a fraction of a Share.

              An Option shall be deemed to be exercised when written notice of
such exercise has been given to the Company in accordance with the terms of the
Option by the person entitled to exercise the Option and full payment for the
Shares with respect to which the Option is

                                      -7-
<PAGE>

exercised has been received by the Company. Full payment may, as authorized by
the Board, consist of any consideration and method of payment allowable under
Section 8(b) of the Plan. Until the issuance (as evidenced by the appropriate
entry on the books of the Company or of a duly authorized transfer agent of the
Company) of the stock certificate evidencing such Shares, no right to vote or
receive dividends or any other rights as a shareholder shall exist with respect
to the Optioned Stock, notwithstanding the exercise of the Option. The Company
shall issue (or cause to be issued) such stock certificate promptly upon
exercise of the Option. No adjustment will be made for a dividend or other right
for which the record date is prior to the date the stock certificate is issued,
except as provided in Section 14 of the Plan.

              Exercise of an Option in any manner shall result in a decrease in
the number of Shares which thereafter may be available, both for purposes of the
Plan and for sale under the Option, by the number of Shares as to which the
Option is exercised.

          (b) Termination of Employment. In the event of termination of an
              -------------------------
Optionee's Continuous Status as an Employee or Consultant, such Optionee may,
but only within such period of time (not less than thirty (30) days) as
determined by the Board, with such determination in the case of an Incentive
Stock Option being made at the time of grant of the Option and not exceeding
three (3) months after the date of such termination (but in no event later than
the expiration date of the term of such Option as set forth in the Option
Agreement), exercise his Option to the extent that Optionee was entitled to
exercise it at the date of such termination.  To the extent that Optionee was
not entitled to exercise the Option at the date of such termination, or if
Optionee does not exercise such Option to the extent so entitled within the time
specified herein, the Option shall terminate.  No termination shall be deemed to
occur and this Section 9(b) shall not apply if (i) the Optionee is a Consultant
who becomes an Employee or (ii) the Optionee is an Employee who becomes a
Consultant.

          (c)  Disability of Optionee.
               ----------------------

              (i) Notwithstanding the provisions of Section 9(b) above, in the
event of termination of an Optionee's Continuous Status as an Employee or
Consultant as a result of his total and permanent disability Optionee may, but
only within twelve (12) months from the date of such termination (but in no
event later than the expiration date of the term of such Option as set forth in
the Option Agreement), exercise the Option to the extent otherwise entitled to
exercise it at the date of such termination. To the extent that Optionee was not
entitled to exercise the Option at the date of termination, or if Optionee does
not exercise such Option to the extent so entitled within the time specified
herein, the Option shall terminate.

              (ii) Notwithstanding the provisions of Section 9(b) above, in the
event of termination of an Optionee's Continuous Status as an Employee or
Consultant as a result of any disability not constituting a total and permanent
disability he may, but only within six (6) months from the date of such
termination (but in no event later than the date of expiration of the term of
such Option as set forth in the Option Agreement), exercise his Option to the
extent he was entitled to exercise it at the date of such termination; provided,
however, that if such Optionee fails to exercise any Incentive Stock Option
within three (3) months from the date of termination of employment, such Option
shall be treated for federal income tax purposes as a Nonstatutory Stock

                                      -8-
<PAGE>

Option. To the extent that Optionee was not entitled to exercise the Option at
the date of termination, or if Optionee does not exercise such Option (which he
was entitled to exercise) within the time specified herein, the Option shall
terminate.

          (d) Death of Optionee.  In the event of the death of an Optionee
              -----------------
during the period of Continuous Status as an Employee or Consultant, the Option
may be exercised, at any time within twelve (12) months following the date of
death (but in no event later than the expiration date of the term of such Option
as set forth in the Option Agreement), by the Optionee's estate or by a person
who acquired the right to exercise the Option by bequest or inheritance, but
only to the extent the Optionee was entitled to exercise the Option at the date
of death.  To the extent that Optionee was not entitled to exercise the Option
at the date of termination, or if Optionee does not exercise such Option to the
extent so entitled within the time specified herein, the Option shall terminate.

          (e) Extension of Exercise Period.  The Administrator shall have full
              ----------------------------
power and authority to extend the period of time for which an Option is to
remain exercisable following termination of an Optionee's Continuous Status as
an Employee or Consultant from the periods set forth in Sections 10(b), 10(c)
and 10(d) above or in the Option Agreement to such greater time as the Board
shall deem appropriate, provided that in no event shall such Option be
exercisable later than the date of expiration of the term of such Option as set
forth in the Option Agreement.

          (f) Rule 16b-3.  Options granted to Reporting Persons must comply with
              ----------
Rule 16b-3 and shall contain such additional conditions or restrictions as may
be required thereunder to qualify for the maximum exemption for Plan
transactions.

          (g) Buyout Provisions.  The Administrator may at any time offer to buy
              -----------------
out for a payment in cash or Shares, an Option previously granted, based on such
terms and conditions as the Administrator shall establish and communicate to the
Optionee at the time that such offer is made.

          11.  Non-Transferability of Options and Stock Purchase Rights.  An
               --------------------------------------------------------
Option or Stock Purchase Right may not be sold, pledged, assigned, hypothecated,
transferred, or disposed of in any manner other than by will or by the laws of
descent or distribution; provided that, after the date, if any, upon which the
Common Stock becomes a Listed Security, the Administrator may in its discretion
grant transferable Nonstatutory Stock Options pursuant to Option Agreements
specifying (i) the manner in which such Nonstatutory Stock Options are
transferable and (ii) that any such transfer shall be subject to the Applicable
Laws.  The designation of a beneficiary by an Optionee will not constitute a
transfer.  An Option or Stock Purchase Right may be exercised, during the
lifetime of the holder of Option or Stock Purchase Right, only by such holder or
a transferee permitted by this Section 11.

          12.  Stock Purchase Rights.
               ---------------------

          (a) Rights to Purchase.  Stock Purchase Rights may be issued either
              ------------------
alone, in addition to, or in tandem with other awards granted under the Plan
and/or cash awards made outside of the Plan.  After the Administrator determines
that it will offer Stock Purchase Rights under the Plan, it shall advise the
offeree in writing of the terms, conditions and restrictions related to the
offer, including the number of Shares that such person shall be entitled to
purchase, the price to be

                                      -9-
<PAGE>

paid, and the time within which such person must accept such offer, which shall
in no event exceed 30 days from the date upon which the Administrator made the
determination to grant the Stock Purchase Right. In the case of a Stock Purchase
Right granted prior to the date, if any, on which the Common Stock becomes a
Listed Security and if required by the Applicable Laws at such time, the
purchase price of Shares subject to such Stock Purchase Rights shall not be less
than 85% of the Fair Market Value of the Shares as of the date of the offer, or,
in the case of a Ten Percent Holder, the price shall not be less than 100% of
the Fair Market Value of the Shares as of the date of the offer. If the
Applicable Laws do not impose the requirements set forth in the preceding
sentence and with respect to any Stock Purchase Rights granted after the date,
if any, on which the Common Stock becomes a Listed Security, the purchase price
of Shares subject to Stock Purchase Rights shall be as determined by the
Administrator. The offer to purchase Shares subject to Stock Purchase Rights
shall be accepted by execution of a Restricted Stock Purchase Agreement in the
form determined by the Administrator.

          (b) Repurchase Option.  Unless the Administrator determines otherwise,
              -----------------
the Restricted Stock purchase agreement shall grant the Company a repurchase
option exercisable upon the voluntary or involuntary termination of the
purchaser's employment with the Company for any reason (including death or
Disability).  The purchase price for Shares repurchased pursuant to the
Restricted Stock purchase agreement shall be the original price paid by the
purchaser and may be paid by cash or cancellation of purchase money indebtedness
of the purchaser to the Company.  The repurchase option shall lapse at such rate
as the Administrator may determine; provided however that with respect to a
Stock Purchase Right granted prior to the date, if any, on which the Common
Stock becomes a Listed Security to a purchaser who is not an officer (including
an Officer), Director or Consultant of the Company or of any Parent or
Subsidiary of the Company, it shall lapse at a minimum rate of 20% per year if
required by the Applicable Laws.

          (c) Other Provisions.  The Restricted Stock purchase agreement shall
              ----------------
contain such other terms, provisions and conditions not inconsistent with the
Plan as may be determined by the Administrator in its sole discretion.  In
addition, the provisions of Restricted Stock purchase agreements need not be the
same with respect to each purchaser.

          (d) Rights as a Shareholder.  Once the Stock Purchase Right is
              -----------------------
exercised, the purchaser shall have the rights equivalent to those of a
shareholder, and shall be a shareholder when his or her purchase is entered upon
the records of the duly authorized transfer agent of the Company.  No adjustment
will be made for a dividend or other right for which the record date is prior to
the date the Stock Purchase Right is exercised, except as provided in Section 13
of the Plan.

     13.  Taxes.
          -----

          (a) As a condition of the exercise of an Option or Stock Purchase
Right granted under the Plan, the Participant (or in the case of the
Participant's death, the person exercising the Option or Stock Purchase Right)
shall make such arrangements as the Administrator may require for the
satisfaction of any applicable federal, state, local or foreign withholding tax
obligations that may arise in connection with the exercise of Option or Stock
Purchase Right and the issuance of Shares.  The Company shall not be required to
issue any Shares under the Plan until such obligations are satisfied.

                                      -10-
<PAGE>

          (b) In the case of an Employee and in the absence of any other
arrangement, the Employee shall be deemed to have directed the Company to
withhold or collect from his or her compensation an amount sufficient to satisfy
such tax obligations from the next payroll payment otherwise payable after the
date of an exercise of the Option or Stock Purchase Right.

          (c) This Section 13(c) shall apply only after the date, if any, upon
which the Common Stock becomes a Listed Security.  In the case of Participant
other than an Employee (or in the case of an Employee where the next payroll
payment is not sufficient to satisfy such tax obligations, with respect to any
remaining tax obligations), in the absence of any other arrangement and to the
extent permitted under the Applicable Laws, the Participant shall be deemed to
have elected to have the Company withhold from the Shares to be issued upon
exercise of the Option or Stock Purchase Right that number of Shares having a
Fair Market Value determined as of the applicable Tax Date (as defined below)
equal to the minimum statutory withholding rates for federal and state tax
purposes, including payroll taxes, applicable to the exercise.  For purposes of
this Section 13, the Fair Market Value of the Shares to be withheld shall be
determined on the date that the amount of tax to be withheld is to be determined
under the Applicable Laws (the "Tax Date").
                                --------

          (d) If permitted by the Administrator, in its discretion, a
Participant may satisfy his or her tax withholding obligations upon exercise of
an Option or Stock Purchase Right by surrendering to the Company Shares that (i)
in the case of Shares previously acquired from the Company, have been owned by
the Participant for more than six (6) months on the date of surrender, and (ii)
have a Fair Market Value determined as of the applicable Tax Date equal to the
minimum statutory withholding rates for federal and state tax purposes,
including payroll taxes, applicable to the exercise.

          (e) Any election or deemed election by a Participant to have Shares
withheld to satisfy tax withholding obligations under Section 13(c) or (d) above
shall be irrevocable as to the particular Shares as to which the election is
made and shall be subject to the consent or disapproval of the Administrator.
Any election by a Participant under Section 13(d) above must be made on or prior
to the applicable Tax Date.

          (f) In the event an election to have Shares withheld is made by a
Participant and the Tax Date is deferred under Section 83 of the Code because no
election is filed under Section 83(b) of the Code, the Participant shall receive
the full number of Shares with respect to which the Option or Stock Purchase
Right is exercised but such Participant shall be unconditionally obligated to
tender back to the Company the proper number of Shares on the applicable Tax
Date.

     14.  Adjustments Upon Changes in Capitalization or Merger.
          ----------------------------------------------------

          (a) Changes in Capitalization.  Subject to any required action by the
              -------------------------
shareholders of the Company, the number of shares of Common Stock covered by
each outstanding Option or Stock Purchase Right, and the number of shares of
Common Stock which have been authorized for issuance under the Plan but as to
which no Options or Stock Purchase Rights have yet been granted or which have
been returned to the Plan upon cancellation or expiration of an Option or Stock
Purchase Right, as well as the price per share of Common Stock covered by each
such outstanding Option or Stock Purchase Right, shall be proportionately
adjusted for any increase

                                      -11-
<PAGE>

or decrease in the number of issued shares of Common Stock resulting from a
stock split, reverse stock split, stock dividend, combination or
reclassification of the Common Stock, or any other increase or decrease in the
number of issued shares of Common Stock effected without receipt of
consideration by the Company; provided, however, that conversion of any
convertible securities of the Company shall not be deemed to have been "effected
without receipt of consideration." Such adjustment shall be made by the Board,
whose determination in that respect shall be final, binding and conclusive.
Except as expressly provided herein, no issuance by the Company of shares of
stock of any class, or securities convertible into shares of stock of any class,
shall affect, and no adjustment by reason thereof shall be made with respect to,
the number or price of shares of Common Stock subject to an Option or Stock
Purchase Right.

          (b) Dissolution or Liquidation.  In the event of the proposed
              --------------------------
dissolution or liquidation of the Company, the Board shall notify the Optionee
at least fifteen (15) days prior to such proposed action.  To the extent it has
not been previously exercised, the Option or Stock Purchase Right will terminate
immediately prior to the consummation of such proposed action.

          (c) Merger or Sale of Assets.  In the event of a proposed sale of all
              ------------------------
or substantially all of the Company's assets or a merger of the Company with or
into another corporation, each outstanding Option shall be assumed or an
equivalent option or right shall be substituted by such successor corporation or
a parent or subsidiary of such successor corporation, unless the successor
corporation does not agree to assume the Option or to substitute an equivalent
option, in which case such Option shall terminate upon the consummation of the
merger or sale of assets.

          (d) Certain Distributions.  In the event of any distribution to the
              ---------------------
Company's shareholders of securities of any other entity or other assets (other
than dividends payable in cash or stock of the Company) without receipt of
consideration by the Company, the Administrator may, in its discretion,
appropriately adjust the price per share of Common Stock covered by each
outstanding Option to reflect the effect of such distribution.

     15.  Time of Granting Options and Stock Purchase Rights.  The date of grant
          --------------------------------------------------
of an Option or Stock Purchase Right shall, for all purposes, be the date on
which the Administrator makes the determination granting such Option or Stock
Purchase Right, or such other date as is determined by the Board.  Notice of the
determination shall be given to each Employee or Consultant to whom an Option or
Stock Purchase Right is so granted within a reasonable time after the date of
such grant.

     16.  Amendment and Termination of the Plan.
          -------------------------------------

          (a) Amendment and Termination.  The Board may at any time amend,
              -------------------------
alter, suspend or discontinue the Plan, but no amendment, alteration, suspension
or discontinuance or termination (other than an adjustment made pursuant to
Section 14 above) shall be made which would impair the rights of any Optionee
under any grant theretofore made, without his or her consent.  In addition, to
the extent necessary and desirable to comply with the Applicable Laws, the
Company shall obtain shareholder approval of any Plan amendment in such a manner
and to such a degree as required.

                                      -12-
<PAGE>

          (b) Effect of Amendment or Termination.  Any such amendment or
              ----------------------------------
termination of the Plan shall not affect Options already granted and such
Options shall remain in full force and effect as if this Plan had not been
amended or terminated, unless mutually agreed otherwise between the Optionee and
the Board, which agreement must be in writing and signed by the Optionee and the
Company.

     17.  Conditions Upon Issuance of Shares.  Shares shall not be issued
          ----------------------------------
pursuant to the exercise of an Option unless the exercise of such Option and the
issuance and delivery of such Shares pursuant thereto shall comply with all
relevant provisions of law, including, without limitation, the Securities Act of
1933, as amended, the Exchange Act, the rules and regulations promulgated
thereunder, and the requirements of any stock exchange upon which the Shares may
then be listed, and shall be further subject to the approval of counsel for the
Company with respect to such compliance.

          As a condition to the exercise of an Option, the Company may require
the person exercising such Option to represent and warrant at the time of any
such exercise that the Shares are being purchased only for investment and
without any present intention to sell or distribute such Shares if, in the
opinion of counsel for the Company, such a representation is required by any of
the aforementioned relevant provisions of law.

     18.  Reservation of Shares.  The Company, during the term of this Plan,
          ---------------------
will at all times reserve and keep available such number of Shares as shall be
sufficient to satisfy the requirements of the Plan.  The inability of the
Company to obtain authority from any regulatory body having jurisdiction, which
authority is deemed by the Company's counsel to be necessary to the lawful
issuance and sale of any Shares hereunder, shall relieve the Company of any
liability in respect of the failure to issue or sell such Shares as to which
such requisite authority shall not have been obtained.

     19.  Agreements.  Options and Stock Purchase Rights shall be evidenced by
          ----------
written agreements in such form as the Board shall approve from time to time.

     20.  Stockholder Approval.  If required by the Applicable Laws, continuance
          --------------------
of the Plan shall be subject to approval by the stockholders of the Company
within twelve (12) months before or after the date the Plan is adopted.  Such
stockholder approval shall be obtained in the manner and to the degree required
under the Applicable Laws.

     21.  Information to Optionees and Purchasers.  Prior to the date, if any,
          ---------------------------------------
upon which the Common Stock becomes a Listed Security and if required by the
Applicable Laws, the Company shall provide to each Optionee and to each
individual who acquired Shares pursuant to the Plan, during the period such
Optionee or purchaser has one or more Options or Stock Purchase Rights
outstanding, and, in the case of an individual who acquired Shares pursuant to
the Plan, during the period such individual owns such Shares, copies of all
annual reports and other information which are provided to all shareholders of
the Company and at least annually, financial statements of the Company.  The
Company shall not be required to provide such information if the issuance of
Options and Stock Purchase Rights under the Plan is limited to key employees
whose duties in connection with the Company assure their access to equivalent
information.  In addition, at the time

                                      -13-
<PAGE>

of issuance of any securities under the Plan, the Company shall provide to the
Optionee a copy of the Plan and a copy of any agreement(s) pursuant to which
securities under the Plan are issued.

                                      -14-
<PAGE>

                                PHONE.COM, INC.
                                1996 STOCK PLAN
                         NOTICE OF STOCK OPTION GRANT

Optionee's Name and Address:
First_Name  Last_Name
Address_Line_1
Address_Line_2
Address_Line_3
City,  State  Zip_Code

You have been granted an option to purchase Common Stock of Phone.com, Inc. (the
"Company") as follows:

        Date of Grant                            Option_Date

        Option Price Per Share                   $Option_Price

        Total Number of Shares Granted           Shares_Granted

        Total Price of Shares Granted            $Total_Option_Price

        Type of Option:                 _______ Incentive Stock Option
                                        _______ Nonstatutory Stock Option

        Term/Expiration Date:                   Expiration_Date_Period_1

        Vesting Commencement Date:              Vest_Base_Date

Exercise Schedule:

        Subject to the terms of the attached Stock Option Agreement, the Option
shall become exercisable cumulatively, to the extent of

        _____     25% of the Shares subject to the Option at the end of twelve
full months following the Vesting Commencement Date, and 1/48th of the Shares at
the end of each month thereafter.

        _____     1.667% of the Shares subject to the Option at the end of each
full month following the Vesting Commencement Date.

<PAGE>

     _____   10% of the Shares subject to the Option on the second anniversary
of the Vesting Commencement Date, 20% on the third anniversary, 30% on the
fourth and 40% on the fifth.

Termination Period:

        The option may be exercised for a period of 60 days after termination of
employment or consulting relationship except as set out in Sections 7 and 8 of
the Stock Option Agreement (but in no event later than the Expiration Date).

        This notice of stock option grant may be executed in counterparts and
each counterpart shall have the same force and effect as an original and shall
constitute a binding agreement on the part of you and the Company.

        By your signature and the signature of the Company's representative
below, you and the Company agree that this option is granted under and governed
by the terms and conditions of the 1996 Stock Plan and the Stock Option
Agreement, all of which are attached and made a part of this document.

First_Name      Last_Name:               PHONE.COM , INC.

_________________________________        By:__________________________________
Signature

_________________________________        Title:_______________________________
Print Name

<PAGE>

                                PHONE.COM, INC.

                                1996 STOCK PLAN

                            STOCK OPTION AGREEMENT

    1.   Grant of Option. Phone.com, Inc., a Delaware corporation (the
         ---------------
"Company"), hereby grants to the Optionee named in the Notice of Grant (the
"Optionee"), an option (the "Option") to purchase a total number of shares of
Common Stock (the "Shares") set forth in the Notice of Grant, at the exercise
price per share set forth in the Notice of Grant (the "Exercise Price") subject
to the terms, definitions and provisions of the Phone.com, Inc. 1996 Stock Plan
(the "Plan") adopted by the Company, which is incorporated herein by reference.
Unless otherwise defined herein, the terms defined in the Plan shall have the
same defined meanings in this Option.

    If designated an Incentive Stock Option, this Option is intended to qualify
as an Incentive Stock Option as defined in Section 422 of the Code.

    2.   Exercise of Option.  This Option shall be exercisable during its term
         ------------------
in accordance with the Exercise Schedule set out in the Notice of Grant and with
the provisions of Section 9 and 10 of the Plan as follows:

         (a)  Right to Exercise.
              -----------------

              (i)    This Option may not be exercised for a fraction of a share.

              (ii)   In the event of Optionee's death, disability or other
termination of employment, the exercisability of the Option is governed by
Sections 6, 7 and 8 below, subject to the limitation contained in subsection
2(a)(i).

              (iii)   In no event may this Option be exercised after the date of
expiration of the term of this Option as set forth in the Notice of Grant.

              (iv)    If designated an Incentive Stock Option in the Notice of
Stock Option Grant, in the event that the Shares subject to this Option (and all
other Incentive Stock Options granted to Optionee by the Company or any Parent
or Subsidiary) that vest in any calendar year have an aggregate fair market
value (determined for each Share as of the Date of Grant of the option covering
such Share) in excess of $100,000, the Shares in excess of $100,000 shall be
treated as subject to a Nonstatutory Stock Option, in accordance with Section 5
of the Plan.

         (b)  Method of Exercise.
              ------------------

              (i)    This Option shall be exercisable by written notice (in the
form attached as Exhibit A) which shall state the election to exercise the
Option, the number of Shares in respect of which the Option is being exercised,
and such other representations and agreements
<PAGE>

as to the holder's investment intent with respect to such shares of Common Stock
as may be required by the Company pursuant to the provisions of the Plan. Such
written notice shall be signed by the Optionee and shall be delivered in person
or by certified mail to the Secretary of the Company. The written notice shall
be accompanied by payment of the Exercise Price. This Option shall be deemed to
be exercised upon receipt by the Company of such written notice accompanied by
the Exercise Price.

              (ii)   As a condition to the exercise of this Option, Optionee
agrees to make adequate provision for federal, state or other tax withholding
obligations, if any, which arise upon the exercise of the Option or disposition
of Shares, whether by withholding, direct payment to the Company, or otherwise.

              (iii)  No Shares will be issued pursuant to the exercise of an
Option unless such issuance and such exercise shall comply with all relevant
provisions of law and the requirements of any stock exchange upon which the
Shares may then be listed. Assuming such compliance, for income tax purposes the
Shares shall be considered transferred to the Optionee on the date on which the
Option is exercised with respect to such Shares.

    3.   Optionee's Representations.  In the event the Shares purchasable
         --------------------------
pursuant to the exercise of this Option have not been registered under the
Securities Act of 1933, as amended (the "Securities Act"), at the time this
Option is exercised, Optionee shall, if required by the Company, concurrently
with the exercise of all or any portion of this Option, deliver to the Company
an investment representation statement in customary form, a copy of which is
available for Optionee's review from the Company upon request.

    4.   Method of Payment.  Payment of the Exercise Price shall be by any of
         -----------------
the following, or a combination thereof, at the election of the Optionee:

         (i)  cash; or

         (ii)  check;

         (iii)  surrender of other shares of Common Stock of the Company which
(A) in the case of Shares acquired pursuant to the exercise of a Company option,
have been owned by the Optionee for more than six (6) months on the date of
surrender, and (B) have a fair market value on the date of surrender equal to
the Exercise Price of the Shares as to which the Option is being exercised; or
(iv) if there is a public market for the Shares and they are registered under
the Securities Act, delivery of a properly executed exercise notice together
with such other documentation as the Administrator and the broker, if
applicable, shall require to effect an exercise of the Option and delivery to
the Company of the sale or loan proceeds required to pay the exercise price.

    5.   Restrictions on Exercise.  This Option may not be exercised (i) until
         ------------------------
such time as the Plan has been approved by the shareholders of the Company, or
(ii) if the issuance of such Shares upon such exercise or the method of payment
of consideration for such shares would

                                      -2-
<PAGE>

constitute a violation of any applicable federal or state securities or other
law or regulation, including any rule under Part 221 of Title 12 of the Code of
Federal Regulations ("Regulation H") as promulgated by the Federal Reserve
Board. As a condition to the exercise of this Option, the Company may require
Optionee to make any representation and warranty to the Company as may be
required by any applicable law or regulation.

    6.   Termination of Relationship.  In the event of termination of Optionee's
         ---------------------------
Continuous Status as an Employee or Consultant, Optionee may, to the extent
otherwise so entitled at the date of such termination (the "Termination Date"),
exercise this Option during the Termination Period set out in the Notice of
Grant. To the extent that Optionee was not entitled to exercise this Option at
the date of such termination, or if Optionee does not exercise this Option
within the time specified herein, the Option shall terminate.

    7.   Disability of Optionee.
         ----------------------

         (i)  Notwithstanding the provisions of Section 6 above, in the event of
termination of Optionee's Continuous Status as an Employee or Consultant as a
result of his total and permanent disability Optionee may, but only within
twelve (12) months from the date of such termination (but in no event later than
the expiration date of the term of such Option as set forth in Section 10
below), exercise the Option to the extent otherwise entitled to exercise it at
the date of such termination. To the extent that Optionee was not entitled to
exercise the Option at the date of termination, or if Optionee does not exercise
such Option to the extent so entitled within the time specified herein, the
Option shall terminate.

         (ii) Notwithstanding the provisions of Section 6 above, in the event of
termination of an Optionee's Continuous Status as an Employee or Consultant as a
result of any disability not constituting a total and permanent disability he
may, but only within six (6) months from the date of such termination (but in no
event later than the date of expiration of the term of such Option as set forth
in Section 10 below), exercise his Option to the extent he was entitled to
exercise it at the date of such termination; provided, however, that if such
Optionee fails to exercise any Incentive Stock Option within three (3) months
from the date of termination of employment, such Option shall be treated for
federal income tax purposes as a Nonstatutory Stock Option. To the extent that
Optionee was not entitled to exercise the Option at the date of termination, or
if Optionee does not exercise such Option (which he was entitled to exercise)
within the time specified herein, the Option shall terminate.

    8.   Death of Optionee.  In the event of the death of Optionee, the Option
         -----------------
may be exercised at any time within twelve (12) months following the date of
death (but in no event later than the date of expiration of the term of this
Option as set forth in Section 10 below), by Optionee's estate or by a person
who acquired the right to exercise the Option by bequest or inheritance, but
only to the extent the Optionee could exercise the Option at the date of death.

    9.   Non-Transferability of Option.  This Option may not be transferred in
         -----------------------------
any manner otherwise than by will or by the laws of descent or distribution and
may be exercised during the lifetime of Optionee only by him. The terms of this
Option shall be binding upon the executors, administrators, heirs, successors
and assigns of the Optionee.

                                      -3-
<PAGE>

    10.  Term of Option.  This Option may be exercised only within the term set
         --------------
out in the Notice of Grant, and may be exercised during such term only in
accordance with the Plan and the terms of this Option. The limitations set out
in Section 7 of the Plan regarding Options designated as Incentive Stock Options
granted to more than ten percent (10%) shareholders shall apply to this Option.

    11.  Taxation Upon Exercise of Option.  Optionee understands that, upon
         --------------------------------
exercising a Nonstatutory Stock Option, he or she will recognize income for tax
purposes in an amount equal to the excess of the then fair market value of the
Shares over the exercise price. If the Optionee is an employee, the Company will
be required to withhold from Optionee's compensation, or collect from Optionee
and pay to the applicable taxing authorities an amount equal to a percentage of
this compensation income. Additionally, the Optionee may at some point be
required to satisfy tax withholding obligations with respect to the
disqualifying disposition of an Incentive Stock Option. The Optionee shall
satisfy his or her tax withholding obligation arising upon the exercise of this
Option by one or some combination of the following methods: (i) by cash payment,
or (ii) out of Optionee's current compensation, or (iii) if permitted by the
Administrator, in its discretion, by surrendering to the Company Shares which
(a) in the case of Shares previously acquired from the Company, have been owned
by the Optionee for more than six months on the date of surrender, and (b) have
a fair market value on the date of surrender equal to or less than the amount
required to be withheld, (iv) by electing to have the Company withhold from the
Shares to be issued upon exercise of the Option that number of Shares having a
fair market value equal to the amount required to be withheld. For this purpose,
the fair market value of the Shares to be withheld shall be determined on the
date that the amount of tax to be withheld is to be determined (the "Tax Date").

         In the case of an Employee and in the absence of any other arrangement,
the Employee shall be deemed to have directed the Company to withhold or collect
from his or her compensation an amount sufficient to satisfy such tax
obligations from the next payroll payment otherwise payable after the date of an
exercise of the Option or Stock Purchase Right. In the case of an Optionee who
is not an Employee (or in the case of an Employee where the next payroll payment
is not sufficient to satisfy such tax obligations, with respect to any remaining
tax obligations), in the absence of any other arrangement and to the extent
permitted under the Applicable Laws, the Optionee shall be deemed to have
elected to have the Company withhold from the Shares to be issued upon exercise
of the Option that number of Shares having a Fair Market Value determined as of
the applicable Tax Date equal to the amount required to be withheld.

         Any election or deemed election by Optionee to have Shares withheld to
satisfy tax withholding obligations under this Section 11 shall be irrevocable
as to the particular Shares as to which the election is made and shall be
subject to the consent or disapproval of the Administrator.

         In the event an election to have Shares withheld is made by an Optionee
and the Tax Date is deferred under Section 83 of the Code because no election is
filed under Section 83(b) of the Code, the Optionee shall receive the full
number of Shares with respect to which the

                                      -4-
<PAGE>

Option is exercised but such Optionee shall be unconditionally obligated to
tender back to the Company the proper number of Shares on the applicable Tax
Date.

    12.  Tax Consequences.  Set forth below is a brief summary as of the date of
         ----------------
this Option of certain federal tax consequences of exercise of this Option and
disposition of the Shares under the laws in effect as of the date of grant.
OPTIONEE UNDERSTANDS THAT THIS SUMMARY IS NECESSARILY INCOMPLETE, AND THE TAX
LAWS AND REGULATIONS ARE SUBJECT TO CHANGE.  OPTIONEE SHOULD CONSULT A TAX
ADVISER BEFORE EXERCISING THIS OPTION OR DISPOSING OF THE SHARES.

         (i)    Exercise of Incentive Stock Option.  If this Option qualifies as
                ----------------------------------
an Incentive Stock Option, there will be no regular federal income tax liability
upon the exercise of the Option, although the excess, if any, of the fair market
value of the Shares on the date of exercise over the Exercise Price will be
treated as an adjustment to the alternative minimum tax for federal tax purposes
and may subject the Optionee to the alternative minimum tax in the year of
exercise.

         (ii)   Exercise of Nonstatutory Stock Option.  If this Option does not
                -------------------------------------
qualify as an Incentive Stock Option, there may be a regular federal income tax
liability upon the exercise of the Option. Optionee will be treated as having
received compensation income (taxable at ordinary income tax rates) equal to the
excess, if any, of the fair market value of the Shares on the date of exercise
over the Exercise Price. If Optionee is an employee, the Company will be
required to withhold from Optionee's compensation or collect from Optionee and
pay to the applicable taxing authorities an amount equal to a percentage of this
compensation income at the time of exercise.

         (iii)  Disposition of Shares.  In the case of a Nonstatutory Stock
                ---------------------
Option, if Shares are held for more than one year, any gain realized on
disposition of the Shares will be treated as long-term capital gain for federal
income tax purposes. In the case of an Incentive Stock Option, if Shares
transferred pursuant to the Option are held for more than one year after
exercise and are disposed of more than two years after the Date of Grant, any
gain realized on disposition of the Shares will also be treated as long-term
capital gain for federal income tax purposes. If Shares purchased under an
Incentive Stock Option are disposed of before the end of either of the two
holding periods, any gain realized on such disposition will be treated as
compensation income (taxable at ordinary income rates) to the extent of the
excess, if any, of the lesser of (i) fair market value of the Shares on the date
of exercise or (ii) the sales proceeds, over the Exercise Price.

         (iv)   Notice of Disqualifying Disposition of Incentive Stock Option
                -------------------------------------------------------------
Shares. If the Option granted to Optionee herein is an Incentive Stock Option,
------
and if Optionee sells or otherwise disposes of any of the Shares acquired
pursuant to the Incentive Stock Option on or before the later of (1) the date
two years after the Date of Grant, or (2) the date one year after the date of
exercise, the Optionee shall immediately notify the Company in writing of such
disposition. Optionee agrees that Optionee may be subject to income tax
withholding by the Company on the compensation income recognized by the Optionee
from the early disposition by payment in cash or out of the current earnings
paid to the Optionee.

                                      -5-
<PAGE>

                                           PHONE.COM, INC.
                                           a Delaware corporation

                                           By: _____________________________

     OPTIONEE ACKNOWLEDGES AND AGREES THAT THE VESTING OF SHARES PURSUANT TO THE
OPTION HEREOF IS EARNED ONLY BY CONTINUING CONSULTANCY OR EMPLOYMENT AT THE WILL
OF THE COMPANY (NOT THROUGH THE ACT OF BEING HIRED, BEING GRANTED THIS OPTION OR
ACQUIRING SHARES HEREUNDER).  OPTIONEE FURTHER ACKNOWLEDGES AND AGREES THAT
NOTHING IN THIS AGREEMENT, NOR IN THE COMPANY'S STOCK PLAN WHICH IS INCORPORATED
HEREIN BY REFERENCE, SHALL CONFER UPON OPTIONEE ANY RIGHT WITH RESPECT TO
CONTINUATION OF EMPLOYMENT OR CONSULTANCY BY THE COMPANY, NOR SHALL IT INTERFERE
IN ANY WAY WITH HIS OR HER RIGHT OR THE COMPANY'S RIGHT TO TERMINATE HIS OR HER
EMPLOYMENT OR CONSULTANCY AT ANY TIME, WITH OR WITHOUT CAUSE.

     Optionee acknowledges receipt of a copy of the Plan and represents that he
or she is familiar with the terms and provisions thereof, and hereby accepts
this Option subject to all of the terms and provisions thereof. Optionee has
reviewed the Plan and this Option in their entirety, has had an opportunity to
obtain the advice of counsel prior to executing this Option and fully
understands all provisions of the Option. Optionee hereby agrees to accept as
binding, conclusive and final all decisions or interpretations of the
Administrator upon any questions arising under the Plan or this Option.

Dated: _______________      ______________________________
                            Optionee

                                      -6-
<PAGE>

                                   EXHIBIT A

                              NOTICE OF EXERCISE
                              ------------------

To:       Phone.com, Inc.
Attn:     Stock Option Administrator
Subject:  Notice of Intention to Exercise Stock Option
          --------------------------------------------
     This is official notice that the undersigned ("Optionee") intends to
exercise Optionee's option to purchase __________ shares of Phone.com, Inc.
Common Stock, under and pursuant to the Company's 1996 Stock Plan and the Notice
of Stock Option Grant/Stock Option Agreement dated ___________, as follows:

          Grant Number:        ________________________________

          Date of Purchase:    ________________________________

          Number of Shares:    ________________________________

          Purchase Price:      ________________________________

          Method of Payment
          of Purchase Price:   ________________________________

    Social Security No.:  ________________________________

    The shares should be issued as follows:

          Name:    ______________________________

          Address: ______________________________

                   ______________________________

                   ______________________________

          Signed:  ______________________________

          Date:    ______________________________

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