Document:

Exhibit 10.83

                           UNSECURED PROMISSORY NOTE

$200,000                                                       November 17, 2000

      FOR VALUE RECEIVED, the undersigned, GreenMan Technologies Inc., 7 Kimball
Lane, Lynnfield, MA 01940 (the "Debtor"), hereby promises to pay to the order of
Dr. Allen Kahn, (the "Holder") on November 17, 2001 the principal sum of Two
Hundred Thousand Dollars ($200,000) or such lesser principal amount then
outstanding, together with all accrued and unpaid interest thereon. Interest on
the principal amount of this Note will accrue from and including the date hereof
until and including the date such principal amount is paid, at a rate equal to
twelve percent (12%)per annum. Interest only shall be payable, in monthly
installments commencing on January 1, 2001 in lawful money of the United States
of America, in immediately available funds. Interest shall be computed on the
basis of a 360-day year and a 30-day month.

      The outstanding balance of this Note shall be rendered immediately due and
payable, without the necessity of a Demand Notice, in case of any of the
following acts (individually, an "Event of Default"): (a) entry of any judgment
or order against the Debtor for the payment of money, if the same is not
satisfied or enforcement proceedings are not stayed within sixty (60) days or
if, within sixty (60) days after the expiration of any such stay, the judgment
or order is not dismissed, discharged or satisfied; (b) appointment of a
receiver, trustee, custodian or similar official, for the Debtor or any property
or assets of the Debtor; (c) conveyance of any or all assets to a trustee,
mortgagee or liquidating agent or assignment for the benefit of creditors by the
Debtor; or (d) commencement of any proceeding under any law or any jurisdiction,
now or hereafter in force, relating to bankruptcy, insolvency, renegotiation of
outstanding indebtedness, arrangement or otherwise to the relief of debtors or
the readjustment of indebtedness, by or against the Debtor. Notwithstanding
anything contained herein to the contrary, upon the occurrence of any such Event
of Default, the entire outstanding amount of principal and interest of this Note
shall become immediately due and payable, without presentment, demand, protest
or other notice of any kind, all of which are hereby expressly waived.

      The Debtor may prepay this Note, in whole or in part, at any time prior to
demand or acceleration. Any permitted payment of principal by the Debtor will be
accompanied by payment of all accrued and unpaid interest on the principal sum
being repaid.

      The Debtor agrees to pay all costs, charges and expenses incurred by the
Holder and its assigns (including, without limitation, costs of collection,
court costs, and reasonable attorneys' fees and disbursements) in connection
with the successful enforcement of the Holder's rights under this Note (all such
costs, charges and expenses being herein referred to as "Costs"). Presentment
for payment, demand, protest, notice of protest and notice of nonpayment are
hereby waived. The Debtor agrees that any delay on the part of the Holder in
exercising any rights hereunder will not operate as a waiver of such rights, and
further agrees that any payments received hereunder will be applied first to
Costs, then to interest, and the balance to principal. The Holder shall not by
any act, delay, omission, or otherwise be deemed to waive any of its rights or
remedies, and no waiver of any kind to enforce this Note shall be valid unless
in writing and signed by the Holder. This Note is payable in any events and is
not subject to offset or reduction because of any other claims of Debtor against
the Holder.

<PAGE>

      This Note applies to, inures to the benefit of, and binds the successors
and assigns of the parties hereto. This Note is not negotiable or transferable
to any other holder without the written consent of the Debtor. This Note is made
under and shall be governed by the internal laws of the Commonwealth of
Massachusetts.

      IN WITNESS WHEREOF, the Debtor has executed this Note as an instrument
under seal as of the date first written above.

DEBTOR

_____________________________
GreenMan Technologies Inc.
Authorized Representative

                                       2<PAGE>

                                                                    EXHIBIT 10.1

                             OPENWAVE SYSTEMS INC.

                                1995 STOCK PLAN

                   FORMERLY KNOWN AS THE SOFTWARE.COM, INC.

                                1995 STOCK PLAN

             (as amended and restated effective as of May 4, 1999)

1.   Purposes of the Plan.  The purposes of this 1995 Stock Plan, as amended,
     --------------------
are:

     .    to attract and retain the best available personnel for positions of
          substantial responsibility,

     .    to provide additional incentive to Employees, Directors and
          Consultants, and

     .    to promote the success of the Company's business.

     Options granted under the Plan may be Incentive Stock Options or
Nonstatutory Stock Options, as determined by the Administrator at the time of
grant.  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 as shall be
           -------------
administering the Plan, in accordance with Section 4 of the Plan.

     (b)  "Applicable Laws" means the requirements relating to the
           ---------------
administration of stock option plans under U. S. state corporate laws, U.S.
federal and state securities laws, the Code, any stock exchange or quotation
system on which the Common Stock is listed or quoted and the applicable laws of
any foreign country or jurisdiction where Options or Stock Purchase Rights are,
or will be, granted under the Plan.

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

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

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

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

     (g)  "Company" means Openwave Systems Inc., a Delaware corporation.
           -------

     (h)  "Consultant" means any person, including an advisor, engaged by the
           ----------
Company or a Parent or Subsidiary to render services to such entity.

     (i)  "Director" means a member of the Board.
           --------
<PAGE>

     (j)  "Disability" means total and permanent disability as defined in
           ----------
Section 22(e)(3) of the Code.

     (k)  "Employee" means any person, including Officers and Directors,
           --------
employed by the Company or any Parent or Subsidiary of the Company. A Service
Provider shall not cease to be an Employee in the case of (i) any leave of
absence approved by the Company or (ii) transfers between locations of the
Company or between the Company, its Parent, any Subsidiary, or any successor.
For purposes of Incentive Stock Options, no such leave may exceed ninety days,
unless reemployment upon expiration of such leave is guaranteed by statute or
contract. If reemployment upon expiration of a leave of absence approved by the
Company is not so guaranteed, on the 181st day of such leave any Incentive Stock
Option held by the Optionee shall cease to be treated as an Incentive Stock
Option and shall be treated for tax purposes as a Nonstatutory Stock Option.
Neither service as a Director nor payment of a director's fee by the Company
shall 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 Nasdaq National
Market or The Nasdaq SmallCap Market of The Nasdaq Stock Market, 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 on the day of
determination, as reported in The Wall Street Journal or such other source as
the Administrator deems reliable;

          (ii)   If the Common Stock is regularly quoted by a recognized
securities dealer but selling prices are not reported, the Fair Market Value of
a Share of Common Stock shall be the mean between the high bid and low asked
prices for the Common Stock on the day of determination, as reported in The Wall
Street Journal or such other source as the Administrator deems reliable; or

          (iii)  In the absence of an established market for the Common Stock,
the Fair Market Value 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 and the
regulations promulgated thereunder.

     (o)  "Merger" means the merger of Phone.com with Software.com which was
           ------
approved by shareholders of the respective companies on November 17, 2000.

     (p)  "Nonstatutory Stock Option" means an Option not intended to qualify
           -------------------------
as an Incentive Stock Option.

                                      -2-
<PAGE>

     (q)  "Notice of Grant" means a written or electronic notice evidencing
           ---------------
certain terms and conditions of an individual Option or Stock Purchase Right
grant. The Notice of Grant is part of the Option Agreement.

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

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

     (t)  "Option Agreement" means an agreement between the Company and an
           ----------------
Optionee evidencing the terms and conditions of an individual Option grant. The
Option Agreement is subject to the terms and conditions of the Plan.

     (u)  "Option Exchange Program" means a program whereby outstanding Options
           -----------------------
are surrendered in exchange for Options with a lower exercise price.

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

     (w)  "Optionee" means the holder of an outstanding Option or Stock Purchase
           --------
Right granted under the Plan.

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

     (y)  "Plan" means this 1995 Stock Plan, as amended.
           ----

     (z)  "Restricted Stock" means shares of Common Stock acquired pursuant to a
           ----------------
grant of Stock Purchase Rights under Section 11 of the Plan.

     (aa) "Restricted Stock Purchase Agreement" means a written agreement
           -----------------------------------
between the Company and the Optionee evidencing the terms and restrictions
applying to stock purchased under a Stock Purchase Right. The Restricted Stock
Purchase Agreement is subject to the terms and conditions of the Plan and the
Notice of Grant.

     (bb) "Rule 16b-3" means Rule 16b-3 of the Exchange Act or any successor to
           ----------
Rule 16b-3, as in effect when discretion is being exercised with respect to the
Plan.

     (cc) "Section 16(b) " means Section 16(b) of the Exchange Act.
           -------------

     (dd) "Service Provider" means an Employee, Director or Consultant.
           ----------------

     (ee) "Share" means a share of the Common Stock, as adjusted in accordance
           -----
with Section 13 of the Plan.

                                      -3-
<PAGE>

     (ff) "Stock Purchase Right" means the right to purchase Common Stock
           --------------------
pursuant to Section 11 of the Plan, as evidenced by a Notice of Grant.

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

     3.   Stock Subject to the Plan. Subject to the provisions of Section 13 of
          -------------------------
the Plan and after adjustment pursuant to the Merger, the maximum aggregate
number of Shares which may be optioned and sold under the Plan is 24,075,253
Shares, plus an annual increase to be added on July 1 of each year beginning in
2000, equal to a lesser of (i) 8,052,500 shares, (ii) 1.97% of the outstanding
shares on such date or (iii) a lesser amount determined by the Board. The Shares
may be authorized, but unissued, or reacquired Common Stock.

     If an Option or Stock Purchase Right expires or becomes unexercisable
without having been exercised in full, or is surrendered pursuant to an Option
Exchange Program, the unpurchased Shares which were subject thereto shall become
available for future grant or sale under the Plan (unless the Plan has
terminated); provided, however, that Shares that have actually been issued under
             --------
the Plan, whether upon exercise of an Option or Right, shall not be returned to
the Plan and shall not become available for future distribution under the Plan,
except that if Shares of Restricted Stock are repurchased by the Company at
their original purchase price, such Shares shall become available for future
grant under the Plan.

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

          (a)    Procedure.
                 ---------

                 (i)    Multiple Administrative Bodies. The Plan may be
                        ------------------------------
administered by different Committees with respect to different groups of Service
Providers.

                 (ii)   Section 162(m). To the extent that the Administrator
                        --------------
determines it to be desirable to qualify Options granted hereunder as
"performance-based compensation" within the meaning of Section 162(m) of the
Code, the Plan shall be administered by a Committee of two or more "outside
directors" within the meaning of Section 162(m) of the Code.

                 (iii)  Rule 16b-3. To the extent desirable to qualify
                        ----------
transactions hereunder as exempt under Rule 16b-3, the transactions contemplated
hereunder shall be structured to satisfy the requirements for exemption under
Rule 16b-3.

                 (iv)   Other Administration. Other than as provided above, the
                        --------------------
Plan shall be administered by (A) the Board or (B) a Committee, which committee
shall be constituted to satisfy Applicable Laws.

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

                                      -4-
<PAGE>

                 (i)    to determine the Fair Market Value;

                 (ii)   to select the Service Providers to whom Options and
Stock Purchase Rights may be granted hereunder;

                 (iii)  to determine the number of shares of Common Stock to be
covered by each Option and Stock Purchase Right granted hereunder;

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

                 (v)    to determine the terms and conditions, not inconsistent
with the terms of the Plan, of any Option or Stock Purchase Right granted
hereunder. Such terms and conditions include, but are not limited to, the
exercise 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 or Stock Purchase Right or the shares of Common Stock
relating thereto, based in each case on such factors as the Administrator, in
its sole discretion, shall determine;

                 (vi)   to reduce the exercise price of any Option or Stock
Purchase Right to the then current Fair Market Value if the Fair Market Value of
the Common Stock covered by such Option or Stock Purchase Right shall have
declined since the date the Option or Stock Purchase Right was granted;

                 (vii)  to institute an Option Exchange Program;

                 (viii) to construe and interpret the terms of the Plan and
awards granted pursuant to the Plan;

                 (ix)   to prescribe, amend and rescind rules and regulations
relating to the Plan, including rules and regulations relating to sub-plans
established for the purpose of qualifying for preferred tax treatment under
foreign tax laws;

                 (x)    to modify or amend each Option or Stock Purchase Right
(subject to Section 15(c) of the Plan), including the discretionary authority to
extend the post-termination exercisability period of Options longer than is
otherwise provided for in the Plan;

                 (xi)   to allow Optionees to satisfy withholding tax
obligations by electing to have the Company withhold from the Shares to be
issued upon exercise of an Option or Stock Purchase Right that number of Shares
having a Fair Market Value equal to the amount required to be withheld. 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. All elections by an
Optionee to have Shares withheld for this purpose shall be made in such form and
under such conditions as the Administrator may deem necessary or advisable;

                                      -5-
<PAGE>

                 (xii)  to authorize any person to execute on behalf of the
Company any instrument required to effect the grant of an Option or Stock
Purchase Right previously granted by the Administrator;

                 (xiii) to make all other determinations deemed necessary or
advisable for administering the Plan.

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

     5.   Eligibility. Nonstatutory Stock Options and Stock Purchase Rights may
          -----------
be granted to Service Providers. Incentive Stock Options may be granted only to
Employees.

     6.   Limitations.
          -----------

          (a)    Each Option shall be designated in the Option Agreement as
either an Incentive Stock Option or a Nonstatutory Stock Option. However,
notwithstanding such designation, to the extent that the aggregate Fair Market
Value of the Shares with respect to which Incentive Stock Options are
exercisable for the first time by the Optionee during any calendar year (under
all plans of the Company and any Parent or Subsidiary) exceeds $100,000, such
Options shall be treated as Nonstatutory Stock Options. For purposes of this
Section 6(a), Incentive Stock Options shall be taken into account in the order
in which they were granted. The Fair Market Value of the Shares shall be
determined as of the time the Option with respect to such Shares is granted.

          (b)    Neither the Plan nor any Option or Stock Purchase Right shall
confer upon an Optionee any right with respect to continuing the Optionee's
relationship as a Service Provider with the Company, nor shall they interfere in
any way with the Optionee's right or the Company's right to terminate such
relationship at any time, with or without cause.

          (c)    The following limitations shall apply to grants of Options:

                 (i)   No Service Provider shall be granted, in any fiscal year
of the Company, Options to purchase more than 2,415,750 Shares (after adjustment
pursuant to the Merger).

                 (ii)   In connection with his or her initial service, a Service
Provider may be granted Options to purchase up to an additional 2,415,750 Shares
(after adjustment pursuant to the Merger) which shall not count against the
limit set forth in subsection (i) above.

                 (iii)  The foregoing limitations shall be adjusted
proportionately in connection with any change in the Company's capitalization as
described in Section 13.

                 (iv)   If an Option is cancelled in the same fiscal year of the
Company in which it was granted (other than in connection with a transaction
described in Section 13), the cancelled Option will be counted against the
limits set forth in subsections (i) and (ii) above. For

                                      -6-
<PAGE>

this purpose, if the exercise price of an Option is reduced, the transaction
will be treated as a cancellation of the Option and the grant of a new Option.

     7.   Term of Plan. Subject to Section 19 of the Plan, the Plan shall become
          ------------
effective upon its adoption by the Board.  It shall continue in effect for a
term of ten (10) years unless terminated earlier under Section 15 of the Plan.

     8.   Term of Option.  The term of each Option shall be stated in the Option
          --------------
Agreement.  In the case of an Incentive Stock Option, the term shall be ten (10)
years from the date of grant or such shorter term as may be provided in the
Option Agreement.  Moreover, in the case of an Incentive Stock Option granted to
an Optionee who, at the time the Incentive Stock Option is granted, owns stock
representing more than ten percent (10%) of the total combined voting power of
all classes of stock of the Company or any Parent or Subsidiary, the term of the
Incentive Stock Option shall be five (5) years from the date of grant or such
shorter term as may be provided in the Option Agreement.

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

          (a)    Exercise Price. The per share exercise price for the Shares to
                 --------------
be issued pursuant to exercise of an Option shall be determined by the
Administrator, subject to the following:

                 (i)    In the case of an Incentive Stock Option

                        (A)  granted to an Employee who, at the time the
Incentive Stock Option is granted, 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, 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 Employee other than an Employee
described in paragraph (A) immediately above, 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, the per
Share exercise price shall be determined by the Administrator. In the case of a
Nonstatutory Stock Option intended to qualify as "performance-based
compensation" within the meaning of Section 162(m) of the Code, the per Share
exercise price shall be no less than 100% of the Fair Market Value per Share on
the date of grant.

                 (iii)  Notwithstanding the foregoing, Options may be granted
with a per Share exercise price of less than 100% of the Fair Market Value per
Share on the date of grant pursuant to a merger or other corporate transaction.

          (b)    Waiting Period and Exercise Dates. At the time an Option is
                 ---------------------------------
granted, the Administrator shall fix the period within which the Option may be
exercised and shall determine any conditions which must be satisfied before the
Option may be exercised.

                                      -7-
<PAGE>

          (c)    Form of Consideration. The Administrator shall determine the
                 ---------------------
acceptable form of consideration for exercising an Option, including the method
of payment. In the case of an Incentive Stock Option, the Administrator shall
determine the acceptable form of consideration at the time of grant. Such
consideration may consist entirely of:

                 (i)    cash;

                 (ii)   check;

                 (iii)  promissory note;

                 (iv)   other Shares which (A) in the case of Shares acquired
upon exercise of an option, 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 the aggregate exercise price of the Shares as to which said
Option shall be exercised;

                 (v)    consideration received by the Company under a cashless
exercise program implemented by the Company in connection with the Plan;

                 (vi)   a reduction in the amount of any Company liability to
the Optionee, including any liability attributable to the Optionee's
participation in any Company-sponsored deferred compensation program or
arrangement;

                 (vii)  any combination of the foregoing methods of payment; or

                 (viii) such other consideration and method of payment for the
issuance of Shares to the extent permitted by Applicable Laws.

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

          (a)    Procedure for Exercise; Rights as a Shareholder. Any Option
                 -----------------------------------------------
granted hereunder shall be exercisable according to the terms of the Plan and at
such times and under such conditions as determined by the Administrator and set
forth in the Option Agreement. Unless the Administrator provides otherwise,
vesting of Options granted hereunder shall be tolled during any unpaid leave of
absence. An Option may not be exercised for a fraction of a Share.

     An Option shall be deemed exercised when the Company receives: (i) written
or electronic notice of exercise (in accordance with the Option Agreement) from
the person entitled to exercise the Option, and (ii) full payment for the Shares
with respect to which the Option is exercised.  Full payment may consist of any
consideration and method of payment authorized by the Administrator and
permitted by the Option Agreement and the Plan.  Shares issued upon exercise of
an Option shall be issued in the name of the Optionee or, if requested by the
Optionee, in the name of the Optionee and his or her spouse.  Until the Shares
are issued (as evidenced by the appropriate entry on the books of the Company or
of a duly authorized transfer agent of the Company), no right to vote or receive
dividends or any other rights as a shareholder shall exist with respect to the
Optioned Stock,

                                      -8-
<PAGE>

notwithstanding the exercise of the Option. The Company shall issue (or cause to
be issued) such Shares promptly after the Option is exercised. No adjustment
will be made for a dividend or other right for which the record date is prior to
the date the Shares are issued, except as provided in Section 13 of the Plan.

     Exercising an Option in any manner shall decrease the number of Shares
thereafter 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 Relationship as a Service Provider. If an
                 -------------------------------------------------
Optionee ceases to be a Service Provider, other than upon the Optionee's death
or Disability, the Optionee may exercise his or her Option within such period of
time as is specified in the Option Agreement to the extent that the Option is
vested on the date of termination (but in no event later than the expiration of
the term of such Option as set forth in the Option Agreement). In the absence of
a specified time in the Option Agreement, the Option shall remain exercisable
for three (3) months following the Optionee's termination. If, on the date of
termination, the Optionee is not vested as to his or her entire Option, the
Shares covered by the unvested portion of the Option shall revert to the Plan.
If, after termination, the Optionee does not exercise his or her Option within
the time specified by the Administrator, the Option shall terminate, and the
Shares covered by such Option shall revert to the Plan.

          (c)    Disability of Optionee. If an Optionee ceases to be a Service
                 ----------------------
Provider as a result of the Optionee's Disability, the Optionee may exercise his
or her Option within such period of time as is specified in the Option Agreement
to the extent the Option is vested on the date of termination (but in no event
later than the expiration of the term of such Option as set forth in the Option
Agreement). In the absence of a specified time in the Option Agreement, the
Option shall remain exercisable for twelve (12) months following the Optionee's
termination. If, on the date of termination, the Optionee is not vested as to
his or her entire Option, the Shares covered by the unvested portion of the
Option shall revert to the Plan. If, after termination, the Optionee does not
exercise his or her Option within the time specified herein, the Option shall
terminate, and the Shares covered by such Option shall revert to the Plan.

          (d)    Death of Optionee. If an Optionee dies while a Service
                 -----------------
Provider, the Option may be exercised within such period of time as is specified
in the Option Agreement (but in no event later than the expiration of the term
of such Option as set forth in the Notice of Grant), by the Optionee's estate or
by a person who acquires the right to exercise the Option by bequest or
inheritance, but only to the extent that the Option is vested on the date of
death. In the absence of a specified time in the Option Agreement, the Option
shall remain exercisable for twelve (12) months following the Optionee's
termination. If, at the time of death, the Optionee is not vested as to his or
her entire Option, the Shares covered by the unvested portion of the Option
shall immediately revert to the Plan. The Option may be exercised by the
executor or administrator of the Optionee's estate or, if none, by the person(s)
entitled to exercise the Option under the Optionee's will or the laws of descent
or distribution. If the Option is not so exercised within the time specified
herein, the Option shall terminate, and the Shares covered by such Option shall
revert to the Plan.

                                      -9-
<PAGE>

          (e)    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.  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 or electronically, by means of a Notice of Grant, of the
terms, conditions and restrictions related to the offer, including the number of
Shares that the offeree shall be entitled to purchase, the price to be paid, and
the time within which the offeree must accept such offer. The offer 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 service 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 cancellation of any indebtedness of the purchaser
to the Company. The repurchase option shall lapse at a rate determined by the
Administrator.

          (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.

          (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.

     12.  Non-Transferability of Options and Stock Purchase Rights.  Unless
          --------------------------------------------------------
determined otherwise by the Administrator, 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 and may be
exercised, during the lifetime of the Optionee, only by the Optionee.  If the
Administrator makes an Option or Stock Purchase Right transferable, such Option
or Stock Purchase Right shall contain such additional terms and conditions as
the Administrator deems appropriate.

     13.  Adjustments Upon Changes in Capitalization, Dissolution, Merger or
          ------------------------------------------------------------------
Asset Sale.
----------

          (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 and

                                      -10-
<PAGE>

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 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 Administrator shall notify each
Optionee as soon as practicable prior to the effective date of such proposed
transaction. The Administrator in its discretion may provide for an Optionee to
have the right to exercise his or her Option until ten (10) days prior to such
transaction as to all of the Optioned Stock covered thereby, including Shares as
to which the Option would not otherwise be exercisable. In addition, the
Administrator may provide that any Company repurchase option applicable to any
Shares purchased upon exercise of an Option or Stock Purchase Right shall lapse
as to all such Shares, provided the proposed dissolution or liquidation takes
place at the time and in the manner contemplated. To the extent it has not been
previously exercised, an Option or Stock Purchase Right will terminate
immediately prior to the consummation of such proposed action.

          (c)    Merger or Asset Sale. In the event of a merger of the Company
                 --------------------
with or into another corporation, or the sale of substantially all of the assets
of the Company, each outstanding Option and Stock Purchase Right shall be
assumed or an equivalent option or right substituted by the successor
corporation or a Parent or Subsidiary of the successor corporation. If, in such
event, the Option or right is not assumed or substituted, the Option or right
shall terminate as of the date of the closing of the merger. For the purposes of
this paragraph, the Option or Stock Purchase Right shall be considered assumed
if, following the merger or sale of assets, the option or right confers the
right to purchase or receive, for each Share of Optioned Stock subject to the
Option or Stock Purchase Right immediately prior to the merger or sale of
assets, the consideration (whether stock, cash, or other securities or property)
received in the merger or sale of assets by holders of Common Stock for each
Share held on the effective date of the transaction (and if holders were offered
a choice of consideration, the type of consideration chosen by the holders of a
majority of the outstanding Shares); provided, however, that if such
consideration received in the merger or sale of assets is not solely common
stock of the successor corporation or its Parent, the Administrator may, with
the consent of the successor corporation, provide for the consideration to be
received upon the exercise of the Option or Stock Purchase Right, for each Share
of Optioned Stock subject to the Option or

                                      -11-
<PAGE>

Stock Purchase Right, to be solely common stock of the successor corporation or
its Parent equal in fair market value to the per share consideration received by
holders of Common Stock in the merger or sale of assets.

     14.  Date of Grant.  The date of grant of an Option or Stock Purchase Right
          -------------
shall be, for all purposes, the date on which the Administrator makes the
determination granting such Option or Stock Purchase Right, or such other later
date as is determined by the Administrator.  Notice of the determination shall
be provided to each Optionee within a reasonable time after the date of such
grant.

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

          (a)    Amendment and Termination. The Board may at any time amend,
                 -------------------------
alter, suspend or terminate the Plan.

          (b)    Shareholder Approval. The Company shall obtain shareholder
                 --------------------
approval of any Plan amendment to the extent necessary and desirable to comply
with Applicable Laws.

          (c)    Effect of Amendment or Termination. No amendment, alteration,
                 ----------------------------------
suspension or termination of the Plan shall impair the rights of any Optionee,
unless mutually agreed otherwise between the Optionee and the Administrator,
which agreement must be in writing and signed by the Optionee and the Company.
Termination of the Plan shall not affect the Administrator's ability to exercise
the powers granted to it hereunder with respect to Options granted under the
Plan prior to the date of such termination.

     16.  Conditions Upon Issuance of Shares.
          ----------------------------------

          (a)    Legal Compliance. Shares shall not be issued pursuant to the
                 ----------------
exercise of an Option or Stock Purchase Right unless the exercise of such Option
or Stock Purchase Right and the issuance and delivery of such Shares shall
comply with Applicable Laws and shall be further subject to the approval of
counsel for the Company with respect to such compliance.

          (b)    Investment Representations. As a condition to the exercise of
                 --------------------------
an Option or Stock Purchase Right, the Company may require the person exercising
such Option or Stock Purchase Right 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.

     17.  Inability to Obtain Authority.  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.

                                      -12-
<PAGE>

     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.

     19.  Shareholder Approval.  The Plan shall be subject to approval by the
          --------------------
shareholders of the Company within twelve (12) months after the date the Plan is
adopted.  Such shareholder approval shall be obtained in the manner and to the
degree required under Applicable Laws.

                                      -13-

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