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                                                                   Exhibit 10.14

[ALTUS LETTERHEAD]

June 2, 2006

Burkhard Blank
[ADDRESS]

Dear Burkhard:

We are pleased you have accepted our offer for the position of Senior Vice
President reporting to Sheldon Berkle, President and CEO. We offer you a
biweekly salary of $14,038.46, which equates to an annualized salary of
$365,000. In addition to your base salary, you will have the opportunity to earn
a bonus of up to 40% of your base salary based on achieving mutually established
performance objectives. Our offer to you also includes Stock Options of 200,000
shares of Altus common stock. Shares will vest quarterly over a four-year
schedule, in accordance with plan documents, so long as you remain an employee.
Your exercise price will be the common stock price in effect on your first day
of employment. We feel this is an opportunity that will offer you a satisfying
position in a challenging growth environment.

You will also be eligible for a Sign-On Bonus of $150,000 to be paid within 30
days of your hire. Should you voluntarily terminate your employment before the
first anniversary of the Commencement Date, the full amount of the bonus will be
repaid by you to the Company. Should you voluntarily terminate your employment
on or after the first anniversary of the Commencement Date and prior to the
second anniversary of the Commencement Date, one-half of the bonus will be
repaid by you to the Company.

To assist you with your transition to Massachusetts, we will assist you in your
search for housing. We will also reimburse you for your moving expenses up to a
maximum of $70,000 to be verified with validated receipts. If you leave the
company within one year you are responsible to reimburse the company back the
pro-rated amount.

Altus offers a competitive and comprehensive benefits program. All employees are
eligible to participate in the program, which includes group health, dental,
life, and long and short-term disability insurance. You are also eligible to
participate in our matching 401k plan, in accordance with plan guidelines.
Employees also receive generous vacation time, of which you are eligible to
receive five (5) weeks, personal time and observed as well as floating holidays.

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Burkhard Blank
June 2, 2006
Page 2


Your employment is subject to your agreement to Altus's standard employee
non-disclosure and inventions agreement. We have included a copy of the
agreement as an attachment to this offer. Please bring the signed copy with you
on your first day.

The Federal government requires that we verify the employment eligibility of all
new employees. On your first day, please bring two forms of identification
(valid driver's license, original birth certificate, passport, original social
security card, etc) demonstrating you are legally eligible to work in the United
States. This information is required to complete the INS (Immigration and
Naturalization Service) form I-9.

We look forward to you beginning employment with us on June 8, 2006. Once you
have had an opportunity to review the above information, please let us know it
is acceptable to you by signing below and returning one copy of this letter.

Burkhard, everyone who has met with you is enthusiastic about your capabilities
and feels confident that Altus will afford you a challenging and rewarding
career. We look forward to having you join us. Please feel free to contact Rose
Villandry (617-299-2813) with any questions or if you need additional
information.

Sincerely,


/s/ Sheldon Berkle
-------------------------------------
Sheldon Berkle
President & CEO

I accept the terms of employment offered in this letter.


Signature: /s/ Burkhard Blank
           --------------------------

Date: June 8, 2006

SSN: [SOCIAL SECURITY NUMBER]

Attachments: 1. Non-Disclosure and Inventions Agreement