Document:

<PAGE>
Exhibit 10.3

                    SECOND AMENDMENT TO EMPLOYMENT AGREEMENT

         THIS SECOND AMENDMENT TO EMPLOYMENT AGREEMENT (this "Amendment") is
entered into between MicroIslet, Inc., a Nevada corporation (the "Company"), and
James R. Gavin III, M.D., Ph.D. ("Executive").

                                   Background

         The Company and Executive entered into an Employment Agreement on
January 20, 2006, which agreement was amended by that certain Amendment to
Employment Agreement dated January 17, 2007 (as amended, the "Agreement"). The
Company and Executive desire to further amend the Agreement, as set forth in
this Amendment, to revise the base salary paid to Executive by the Company.

                                    Agreement

         NOW, THEREFORE, for good and valuable consideration, the receipt and
sufficient of which are hereby acknowledged, the parties agree as follows:

         1. Amendment of Section 2.1. Section 2.1 of the Agreement is hereby
amended, effective May 16, 2007, to read in its entirety as follows:

         "2.1 Base Salary and Adjustments. Your base salary will be at a rate of
         $400,000 per year (the "Base Salary"), less payroll deductions and
         required withholdings, paid according to the Company's regular payroll
         schedule and procedures."

         2. Amendment of Section 5.6. The following is hereby appended to the
end of Section 5.6 of the Agreement:

         "Notwithstanding the foregoing, in no event shall the Severance Payment
         under this Section 5.6 exceed two times the lesser of (i) your
         annualized compensation for the taxable year preceding your
         termination; or (ii) the maximum amount that may be taken into account
         under a qualified plan pursuant to Section 401(a)(17) of the Internal
         Revenue Code of 1986, as amended, for the year in which the Company
         terminates your employment."

         3. Miscellaneous. Except as amended by this Amendment, the Agreement
will otherwise remain in full force and effect. Any further amendment to the
Agreement or this Amendment will require the prior written consent of both the
Company and Executive. This Amendment will be governed by and construed under
the laws of the State of California, without regard to its conflicts of laws
provisions. This Amendment may be executed in two or more original, facsimile or
..PDF counterparts, each of which will be deemed an original, but all of which
together will constitute one and the same instrument.

                            [Signature page follows.]

<PAGE>

         IN WITNESS OF WHICH, the Company and Executive have executed this
Amendment as of the dates set forth below.

DATE: May 10, 2007                           MicroIslet, Inc.

                                             By: /s/ Kevin A. Hainley
                                                 -------------------------------
                                                 Kevin Hainley
                                                 Interim Chief Financial Officer

DATE: May 10, 2007                           James R. Gavin III
                                             ------------------
                                             James R. Gavin III, M.D., Ph.D.<PAGE>

Exhibit 10.1

WORLD WASTE
TECHNOLOGIES, INC.

                                                                  April 30, 2007

Matthew Lieb
2021 Whitley Terrace Steps
Los Angeles, CA 90068

Dear Matthew:

     It gives us great pleasure to offer you the position of Chief Operating
Officer for World Waste Technologies, Inc. (the "Company"), reporting to the
Chief Executive Officer. This letter agreement (the "Agreement") sets forth the
basic terms and conditions of your new position. Your effective date of hire by
the Company is April 30, 2007. By signing this Agreement, you will be agreeing
to these terms. It is important that you understand clearly both what your
benefits are and the obligations you have to the Company.

     1. Compensation. You will be compensated at the monthly rate of $13,500.00,
payable every two weeks, in arrears. You will be reimbursed for all of your
business expenses in accordance with the Company's standard practices. Subject
to Board approval and your execution of the Company's standard option agreement,
you will be granted options to acquire 400,000 shares of the Company's common
stock at an exercise price equal to fair market value as of the date of grant
and subject to the vesting schedule set forth on the Annex to this Agreement.
This position is eligible for future senior management cash and stock bonuses,
as may be developed and approved by the Compensation Committee of the Board

     2. Duties. You have been appointed by the Company to serve as its Chief
Operating Officer. Your duties, responsibilities and authority include such
duties as are appropriate to such position of the senior management team and as
are from time to time assigned to you by the Chief Executive Officer. Throughout
the term of your employment, you will devote your full business time and
energies to the business and affairs of the Company subject to the overall
supervision and direction of the Chief Executive Officer and the Company's Board
of Directors.

     As an exempt employee, you are required to exercise your specialized
expertise, independent judgment and discretion to provide high quality services.
You are required to follow written office policies and procedures adopted from
time to time by the Company. The Company reserves the right to change these
written policies and procedures at any time. While at work, you are required to

<PAGE>
Page 2

devote your full energies, efforts and abilities to your employment, unless the
Company expressly agrees otherwise. The Company does expressly agree that from
time to time you will need to and will be permitted to attend to issues relating
to the sale and operations of Kingsley Management, LLC, but that all efforts
will be made by you to avoid any conflicts with your employment at the Company.

     3. Proprietary Information Agreement. You will be required to sign the
Company's standard Proprietary Information and Inventions Agreement, which is
incorporated into this Agreement by reference. You are required to immediately
notify the Company's Chief Executive Officer regarding any product, improvement
or process which you shall discover, make, invent, conceive, develop or design,
solely or jointly with others, relating to any product, equipment or process
which is applicable to the subject matter of the Company's business, or which
may be directly or indirectly utilized in connection therewith, irrespective of
whether or not said product, improvement or process was discovered, made,
invented, conceived, developed or designed on your time or at the expense of the
Company.

     4. Employee Benefits. You will be eligible for paid vacation, holidays,
health benefits and other employee benefits, in accordance with the Company's
employee policies as developed, adopted and modified from time to time.

     5. At-Will Employment. Notwithstanding any provision in this Agreement to
the contrary, your employment with the Company is at the Company's sole
discretion (in legal terms, this means that your employment is "at-will"). In
other words, either you or the Company can terminate your employment at any time
for any reason, with or without cause and with or without notice, and without
thereby incurring any liability under this Agreement or otherwise. The fact that
your salary is based upon a monthly rate should in no way be interpreted to mean
that you are entitled to receive your salary for an entire monthly period in the
event you are terminated prior to the end of such period (you shall only be
entitled to be paid for the days you actually worked in such monthly period
prior to your termination). Your at-will term of employment is not subject to
change or modification of any kind except if in writing and signed by you and
the Chief Executive Officer of the Company.

     6. Arbitration. You and the Company agree that any dispute arising under or
in connection with this Agreement, including any dispute involving your
employment or the termination of that employment and any claim the Company may
assert against you (whether based on contract, tort or statutory duty or
prohibition, including any prohibition against discrimination or harassment or
misuse of company property or trade secrets ), shall be submitted to binding
arbitration in accordance with California Code of Civil Procedure ss.ss. 1280 -
1294.2 before a single neutral arbitrator. You and the Company understand that
each is waiving its rights to a jury trial.

     The party demanding arbitration shall submit a written claim to the other
party setting out the basis of the claim. Demands shall be presented in the same
manner as notices under this Agreement. You and the Company will attempt to
reach agreement on an arbitrator within ten (10) business days of delivery of

<PAGE>
Page 3

the arbitration demand. After this ten (10) business day period, either you or
the Company may request a list of seven professional arbitrators from the
American Arbitration Association or another mutually agreed service. You and the
Company will alternately strike names until only one person remains and that
person shall be designated as the arbitrator. The party demanding arbitration
shall make the first strike.

     The arbitration shall take place in Anaheim, California, at a time and
place determined by the arbitrator. Each party shall be entitled to discovery of
essential documents and witnesses and to deposition discovery, as determined by
the arbitrator, taking into account the mutual desire to have a fast,
cost-effective, dispute-resolution mechanism. You and the Company will attempt
to cooperate in the discovery process before seeking the determination of the
arbitrator. Except as otherwise determined by the arbitrator, you and the
Company will each be limited to no more than three (3) depositions. The
arbitrator shall have the powers provided in California Code of Civil Procedure
ss.ss. 1282.2 - 1284.2 and may provide all appropriate remedies at law or
equity.

     The arbitrator will have the authority to entertain a motion to dismiss
and/or a motion for summary judgment by either you or the Company and shall
apply the standards governing such motions under California law, unless the
standards of another judicial forum supercede California law. The Arbitrator
shall render, within sixty (60) days of the completion of the arbitration, an
award and a written, reasoned opinion in support of that award. Judgment on the
award may be entered in any court having jurisdiction.

     The Company will pay the arbitrator's expenses and fees, all meeting room
charges and any other expenses that would not have been incurred if the case
were litigated in the judicial forum having jurisdiction over it. Unless
otherwise ordered by the arbitrator pursuant to law or this Agreement, each
party shall pay its own attorney fees, witness fees and other expenses incurred
by the party for his or its own benefit. Your share of any filing,
administration or similar fee shall be no more than the then current filing or
other applicable fee in California Superior Court or, if applicable, other
appropriate tribunal with jurisdiction.

     7. Withholding. Anything to the contrary notwithstanding, all payments made
by the Company hereunder to you or your estate or beneficiaries will be subject
to tax withholding pursuant to any applicable laws or regulations. In lieu of
withholding, the Company may, in its sole discretion, accept other provision for
payment of taxes as required by law, provided it is satisfied that all
requirements of law affecting its responsibilities to withhold such taxes have
been satisfied.

     8. Integrated Agreement. Please note that this Agreement supersedes any
prior agreements, representations or promises of any kind, whether written,
oral, express or implied between you and the Company with respect to the subject
matters herein. This Agreement constitutes the full, complete and exclusive
agreement between you and the Company with respect to the subject matters in
this Agreement.

<PAGE>
Page 4

     9. Miscellaneous. No provision of this Agreement may be amended or waived
unless such amendment or waiver is agreed to by you and the Chief Executive
Officer in writing. No waiver by you or by the Company of the breach of any
condition or provision of this Agreement will be deemed a waiver of a similar or
dissimilar provision or condition at the same or any prior or subsequent time.
In the event any portion of this Agreement is determined to be invalid or
unenforceable for any reason, the remaining portions shall be unaffected thereby
and will remain in full force and effect to the fullest extent permitted by law.
All matters relating to the interpretation or enforcement of this Agreement
shall be governed by California law, without regard to its choice of law
provisions.

     We would appreciate it if you would indicate your acceptance of this offer
by signing below and returning a copy to us. A copy is provided for your
records.

     If there are any questions related to this Agreement, please do not
hesitate to speak to me.

                                           Sincerely,

                                           John Pimentel
                                           Chief Executive Officer

 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

I agree to the terms of at-will employment set forth in this Agreement.

--------------------------------        ----------------------------
Signature                               Date

--------------------------------
Legal Name (Print)

<PAGE>
Page 5

                                      ANNEX

           VESTING SCHEDULE FOR STOCK OPTIONS AWARDED TO MATTHEW LIEB

The 400,000 options provided for in this agreement vest as follows:

     o    40,000 options to vest as of the date employment begins.

     o    360,000 options to vest over 4 years from employee anniversary date
          under our current vesting schedule:

          o    1 year cliff vesting of 90,000 options on the one year
               anniversary of employment.

          o    Monthly vesting beginning on the thirteenth month of employment
               for 36 months at 7,500 options per month.

     o    The vesting schedule may be expressly altered in writing by mutual
          agreement between you, the Chief Executive Officer and the
          Compensation Committee.

     o    All options vest automatically ("accelerated vesting") upon change of
          control of the company or sale of substantially all of its assets.

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00123-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00123-of-00352.parquet"}]]