Document:

September
      29, 2006

    

    

    Advanced
      Technology Acquisition Corp.

    14
      A
      Achimeir Street 

    Ramat
      Gan
      52587 Israel

    

    CRT
      Capital Group LLC

    262
      Harbor Drive

    Stamford,
      Connecticut 06902

    

    Re:
      Initial Public Offering

    

    Gentlemen:

    

    The
      undersigned initial stockholder of Advanced Technology Acquisition Corp.
      (“Company”), in consideration of CRT Capital Group LLC (“CRT”) entering into a
      letter of intent (“Letter of Intent”) to underwrite an initial public offering
      of the securities of the Company (“IPO”) and embarking on the IPO process,
      hereby agrees as follows (certain capitalized terms used herein are defined
      in
      paragraph 5 hereof): 

    

    1.
      If the
      Company solicits approval of its stockholders of a Business Combination, the
      undersigned will vote all Pre-IPO Shares and IPO Shares beneficially owned
      by it
      in accordance with the majority of the votes cast by the non-affiliated holders
      of the IPO Shares.

    

    2.
      The
      undersigned will escrow all Pre-IPO Shares and such Pre-IPO Shares will not
      be
      transferable during the escrow period and will not be released from escrow
      until
      the date which is one year after the consummation of a Business Combination,
      subject to the terms of a Stock Escrow Agreement which the Company will enter
      into with the undersigned and an escrow agent acceptable to the
      Company.

    

    3.
      The
      undersigned has full right and power, without violating any agreement by which
      he is bound, to enter into this letter agreement.

    

    4.
      This
      letter agreement shall be governed by and construed and enforced in accordance
      with the laws of the State of New York, without giving effect to conflicts
      of
      law principles that would result in the application of the substantive laws
      of
      another jurisdiction. The undersigned hereby (i) agrees that any action,
      proceeding or claim against him arising out of or relating in any way to this
      letter agreement (a “Proceeding”) shall be brought and enforced in the courts of
      the State of New York or of the United States of America for the Southern
      District of New York, and irrevocably submits to such jurisdiction, which
      jurisdiction shall be exclusive, (ii) waives any objection to such exclusive
      jurisdiction and that such courts represent an inconvenient forum and (iii)
      irrevocably agrees to appoint Corporation Service Company as agent for the
      service of process in the State of New York to receive, for the undersigned
      and
      on his behalf, service of process in any Proceeding. If for any reason such
      agent is unable to act as such, the undersigned will promptly notify the Company
      and CRT and appoint a substitute agent acceptable to each of the Company and
      CRT
      within 30 days and nothing in this letter will affect the right of either party
      to serve process in any other manner permitted by law.

    

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    5.
      As
      used herein, (i) a “Business Combination” shall
      mean an acquisition by merger,
      capital stock exchange, asset acquisition, stock purchase or other similar
      business combination with a technology or technology-related business that
      has
      operations or facilities located in Israel, or that intends to establish
      operations or facilities in Israel, such as research and development,
      manufacturing or executive offices, following the Company's initial business
      combination with a target business; (ii) “Insiders” shall mean all officers,
      directors and stockholders of the Company immediately prior to the IPO; (iii)
      “Pre-IPO Shares” shall mean all of the shares of Common Stock of the Company
      owned by an Insider prior to the IPO; and (iv) “IPO Shares” shall mean the
      shares of Common Stock issued in the Company’s IPO.

    

    [REMAINDER
      OF PAGE INTENTIONALLY BLANK. SIGNATURE PAGE FOLLOWS]

    

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    

    
      	 	 	 	 
	/s/ Avigdor
              Kaplan   	 	 	 
	
              
Avigdor
              Kaplan   	 	 	
            
	 	 	 	 

    

     

    
[Signature
      Page to Initial Stockholder
      Letter]September
      29, 2006

    

    

    Advanced
      Technology Acquisition Corp.

    14
      A
      Achimeir Street 

    Ramat
      Gan
      52587 Israel

    

    CRT
      Capital Group LLC

    262
      Harbor Drive

    Stamford,
      Connecticut 06902

    

    Re:
      Initial Public Offering

    

    Gentlemen:

    

    The
      undersigned initial stockholder of Advanced Technology Acquisition Corp.
      (“Company”), in consideration of CRT Capital Group LLC (“CRT”) entering into a
      letter of intent (“Letter of Intent”) to underwrite an initial public offering
      of the securities of the Company (“IPO”) and embarking on the IPO process,
      hereby agrees as follows (certain capitalized terms used herein are defined
      in
      paragraph 5 hereof): 

    

    1.
      If the
      Company solicits approval of its stockholders of a Business Combination, the
      undersigned will vote all Pre-IPO Shares and IPO Shares beneficially owned
      by it
      in accordance with the majority of the votes cast by the non-affiliated holders
      of the IPO Shares.

    

    2.
      The
      undersigned will escrow all Pre-IPO Shares and such Pre-IPO Shares will not
      be
      transferable during the escrow period and will not be released from escrow
      until
      the date which is one year after the consummation of a Business Combination,
      subject to the terms of a Stock Escrow Agreement which the Company will enter
      into with the undersigned and an escrow agent acceptable to the
      Company.

    

    3.
      The
      undersigned has full right and power, without violating any agreement by which
      he is bound, to enter into this letter agreement.

    

    4.
      This
      letter agreement shall be governed by and construed and enforced in accordance
      with the laws of the State of New York, without giving effect to conflicts
      of
      law principles that would result in the application of the substantive laws
      of
      another jurisdiction. The undersigned hereby (i) agrees that any action,
      proceeding or claim against him arising out of or relating in any way to this
      letter agreement (a “Proceeding”) shall be brought and enforced in the courts of
      the State of New York or of the United States of America for the Southern
      District of New York, and irrevocably submits to such jurisdiction, which
      jurisdiction shall be exclusive, (ii) waives any objection to such exclusive
      jurisdiction and that such courts represent an inconvenient forum and (iii)
      irrevocably agrees to appoint Corporation Service Company as agent for the
      service of process in the State of New York to receive, for the undersigned
      and
      on his behalf, service of process in any Proceeding. If for any reason such
      agent is unable to act as such, the undersigned will promptly notify the Company
      and CRT and appoint a substitute agent acceptable to each of the Company and
      CRT
      within 30 days and nothing in this letter will affect the right of either party
      to serve process in any other manner permitted by law.

    

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    5.
      As
      used herein, (i) a “Business Combination” shall
      mean an acquisition by merger,
      capital stock exchange, asset acquisition, stock purchase or other similar
      business combination with a technology or technology-related business that
      has
      operations or facilities located in Israel, or that intends to establish
      operations or facilities in Israel, such as research and development,
      manufacturing or executive offices, following the Company's initial business
      combination with a target business; (ii) “Insiders” shall mean all officers,
      directors and stockholders of the Company immediately prior to the IPO; (iii)
      “Pre-IPO Shares” shall mean all of the shares of Common Stock of the Company
      owned by an Insider prior to the IPO; and (iv) “IPO Shares” shall mean the
      shares of Common Stock issued in the Company’s IPO.

    

     

     

    [REMAINDER
      OF PAGE INTENTIONALLY BLANK. SIGNATURE PAGE FOLLOWS]

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    

     

    
      	 	 	 	 
	/s/ Elisha
              Yanay	 	 	 
	
              
Elisha
              Yanay	 	 	
            
	 	 	 	 

    

     

    
[Signature
      Page to Initial Stockholder
      Letter]September
      29, 2006

    

    

    Advanced
      Technology Acquisition Corp.

    14
      A
      Achimeir Street 

    Ramat
      Gan
      52587 Israel

    

    CRT
      Capital Group LLC

    262
      Harbor Drive

    Stamford,
      Connecticut 06902

    

    Re:
      Initial Public Offering

    

    Gentlemen:

    

    The
      undersigned officer of Advanced Technology Acquisition Corp. (“Company”), in
      consideration of CRT Capital Group LLC (“CRT”) entering into a letter of intent
      (“Letter of Intent”) to underwrite an initial public offering of the securities
      of the Company (“IPO”) and embarking on the IPO process, hereby agrees as
      follows (certain capitalized terms used herein are defined in paragraph 9
      hereof): 

    

    1.
      If the
      Company solicits approval of its stockholders of a Business Combination, the
      undersigned will vote all Pre-IPO Shares and IPO Shares beneficially owned
      by it
      in accordance with the majority of the votes cast by the non-affiliated holders
      of the IPO Shares.

    

    2.
      In the
      event that the Company fails to consummate a Business Combination within 18
      months from the effective date (“Effective Date”) of the registration statement
      relating to the IPO (or 24 months under the circumstances described in the
      prospectus relating to the IPO), the undersigned shall take all reasonable
      actions within such person’s power to cause (i) the Company to dissolve and
      liquidate the Trust Account to holders of IPO Shares as soon as reasonably
      practicable, and after approval of the Company's stockholders of a plan of
      dissolution and distribution and subject to the requirements of the Delaware
      General Corporation Law (the “DGCL”), including voting for the adoption of a
      resolution by the Board, prior to such Termination Date, pursuant to Section
      275(a) of the DGCL, which shall deem the dissolution of the Corporation
      advisable and (b) cause to be prepared such notices as are required by said
      Section 275(a) of the DGCL as promptly thereafter as possible, and (ii) vote
      his
      shares in favor of any plan of dissolution and distribution recommended by
      the
      Company's board of directors. The undersigned hereby waives any and all right,
      title, interest or claim of any kind in or to any distribution of the Trust
      Account and any remaining net assets of the Company as a result of such
      liquidation with respect to his Pre-IPO Shares (“Claim”) and hereby waives any
      Claim the undersigned may have in the future as a result of, or arising out
      of,
      any contracts or agreements with the Company and will not seek recourse against
      the Trust Account for any reason whatsoever. The undersigned hereby agrees
      that
      the Company shall be entitled to a reimbursement from the undersigned for any
      distribution of the Trust Account received by the undersigned in respect of
      such
      person’s Pre-IPO Shares. 

    

    3.
      The
      undersigned acknowledges and agrees that the Company will not consummate any
      Business Combination which involves a company which is affiliated with any
      of
      the initial stockholders unless the Company obtains an opinion from an
      independent investment banking firm that the business combination is fair to
      the
      Company’s stockholders from a financial point of view.

    

    4.
      Neither
      the undersigned, any member of the Immediate Family of the undersigned, nor
      any
      affiliate (“Affiliate”) of the undersigned will be entitled to receive and will
      not accept any compensation for services rendered to the Company prior to or
      in
      connection with the consummation of the Business Combination, provided that
      commencing on the Effective Date, LMS
      Nihul
      (“Related Party”), shall be allowed to charge the Company $10,000 per month,
      representing an allocable share of Related Party’s overhead, to compensate it
      for the Company’s use of Related Party’s offices, utilities and personnel. The
      undersigned shall also be entitled to reimbursement from the Company for its
      reasonable out-of-pocket expenses incurred in connection with the organization
      of the Company, the IPO, and certain activities on behalf of the Company, such
      as identifying and investigating possible targets for our initial Business
      Combination.

    

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    5.
      Neither the undersigned, any member of the Immediate
      Family of
      the
      undersigned, nor any Affiliate of the undersigned will be entitled to receive
      or
      accept a finder’s fee or any other compensation in the event the undersigned,
      any member of the Immediate
      Family of
      the
      undersigned or any Affiliate of the undersigned originates a Business
      Combination.

    

    6.
      The
      undersigned agrees to serve as Chief Financial Officer, Treasurer and Secretary
      of the Company until the earlier of the consummation by the Company of a
      Business Combination or the dissolution and liquidation of the Company. The
      undersigned’s biographical information furnished to the Company and CRT and
      attached hereto as Exhibit A is true and accurate in all respects, does not
      omit
      any material information with respect to the undersigned’s background and
      contains all of the information required to be disclosed pursuant to Item 401
      of
      Regulation S-K, promulgated under the Securities Act of 1933. The undersigned’s
      Questionnaire furnished to the Company and CRT and annexed as Exhibit B hereto
      is true and accurate in all respects. The undersigned represents and warrants
      that:

    

    a.
      he is
      not subject to, or a respondent in, any legal action for, any injunction,
      cease-and-desist order or order or stipulation to desist or refrain from any
      act
      or practice relating to the offering of securities in any
      jurisdiction;

    

    b.
      he has
      never been convicted of or pleaded guilty to any crime (i) involving any fraud
      or (ii) relating to any financial transaction or handling of funds of another
      person, or (iii) pertaining to any dealings in any securities and he is not
      currently a defendant in any such criminal proceeding; and

    

    c.
      he has
      never been suspended or expelled from membership in any securities or
      commodities exchange or association or had a securities or commodities license
      or registration denied, suspended or revoked.

    

    7.
      The
      undersigned has full right and power, without violating any agreement by which
      he is bound, to enter into this letter agreement and to serve as Chief Financial
      Officer, Treasurer and Secretary of the Company.

    

    8.
      This
      letter agreement shall be governed by and construed and enforced in accordance
      with the laws of the State of New York, without giving effect to conflicts
      of
      law principles that would result in the application of the substantive laws
      of
      another jurisdiction. The undersigned hereby (i) agrees that any action,
      proceeding or claim against him arising out of or relating in any way to this
      letter agreement (a “Proceeding”) shall be brought and enforced in the courts of
      the State of New York or of the United States of America for the Southern
      District of New York, and irrevocably submits to such jurisdiction, which
      jurisdiction shall be exclusive, (ii) waives any objection to such exclusive
      jurisdiction and that such courts represent an inconvenient forum and (iii)
      irrevocably agrees to appoint Corporation Service Company as agent for the
      service of process in the State of New York to receive, for the undersigned
      and
      on his behalf, service of process in any Proceeding. If for any reason such
      agent is unable to act as such, the undersigned will promptly notify the Company
      and CRT and appoint a substitute agent acceptable to each of the Company and
      CRT
      within 30 days and nothing in this letter will affect the right of either party
      to serve process in any other manner permitted by law.

    

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    9.
      As
      used herein, (i) a “Business Combination” shall mean an acquisition by
merger,
      capital stock exchange, asset acquisition, stock purchase or other similar
      business combination with a technology or technology-related business that
      has
      operations or facilities located in Israel, or that intends to establish
      operations or facilities in Israel, such as research and development,
      manufacturing or executive offices, following the Company's initial business
      combination with a target business; (ii) “Immediate Family” shall mean, with
      respect to any person, such person’s spouse, lineal descendents, father, mother,
      brothers or sisters (including any such relatives by adoption or marriage);
      (iii)“Insiders” shall mean all officers, directors and stockholders of the
      Company immediately prior to the IPO; (iv) “Pre-IPO Shares” shall mean all of
      the shares of Common Stock of the Company owned by an Insider prior to the
      IPO;
      and (v) “IPO Shares” shall mean the shares of Common Stock issued in the
      Company’s IPO; and (vi) “Trust Account” shall mean that certain trust account
      established with Continental Stock Transfer & Trust Company, as trustee,
      into which the Company will deposit the “funds to be held in trust,” as
      described in the Prospectus.

    

    

    [REMAINDER
      OF PAGE INTENTIONALLY BLANK. SIGNATURE PAGE FOLLOWS]

    

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    

    
      	 	 	 	 
	/s/ 
              Josef Neuhaus	 	 	 
	
              
Josef
              Neuhaus	 	 	
            
	 	 	 	 

    

     

    

     

    [Signature
      Page to Director and Officer
      Letter]

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    EXHIBIT
      A

    

    INSIDER
      BIOGRAPHY (AS INCLUDED IN S-1)

    

    Josef
      (Jos) Neuhaus
      has been
      our Chief Financial Officer since our inception. Since January 2004, Mr. Neuhaus
      has been an independent consultant. His engagements have included leading
      AxisMobile Ltd. (London AIM: “AXIS.L”), a company engaged in consumer mobile
      mail solutions, to a listing on the London AIM Exchange and the strategic
      turnaround of a global private company in Israel. From March 2003 through
      December 2003, Mr. Neuhaus was the Chief Executive Officer of RoadEye FLR G.P.
      and a Managing Director of Gintec Active Safety Ltd., both of which were in
      the
      collision avoidance system industry. From April 2000 to June 2001, Mr. Neuhaus
      was the Chief Financial Officer of PassCall Advanced Technologies Ltd., a
      wireless Internet startup company. From 1998 to 2000, Mr. Neuhaus was a Managing
      Director and the Chief Financial Officer of International Tourist Attractions
      Ltd. a company that initiates and builds tourist attractions. From 1995 to
      1998,
      Mr. Neuhaus served as the Chief Financial Officer of ICTS International NV
      (Nasdaq: “ICTS”), a company specializing in the development and implementation
      of innovative security concepts and solutions designed to meet the needs of
      a
      variety of industries, including transportation (aviation, railroad and other
      means of public transportation), border control and sensitive facilities. Prior
      to 1995, Mr. Neuhaus worked as a senior auditor at Somekh Chaikin, which is
      the
      KPMG affiliate in Israel. Mr. Neuhaus serves on the Board of Directors of
      GammaCan International Inc. (OTCBB: “GCAN.OB”), a biopharma-ceutical company
      focused on clinical-phase development and commercialization. Mr. Neuhaus also
      serves as the elected President of the Recanati Executive MBA Alumni Club of
      Tel
      Aviv University. Mr. Neuhaus received both his M.B.A (Executive program, Leon
      Recanati Graduate School of Business Administration), and B.A., Accounting
      and
      Economics, at Tel Aviv University. He is an Israeli Certified Public
      Accountant.

     

     

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    EXHIBIT
      B

    

    INSIDER
      D&O QUESTIONNAIRE

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