[Founders’
      Warrant Legend

     

    THE
      SECURITIES REPRESENTED BY THIS WARRANT CERTIFICATE (INCLUDING THE SECURITIES
      ISSUABLE UPON EXERCISE OF THE WARRANT) HAVE NOT BEEN REGISTERED UNDER THE
      SECURITIES ACT OF 1933, AS AMENDED (THE “ACT”), OR THE SECURITIES LAWS OF ANY
      STATE OR OTHER JURISDICTION, AND MAY NOT BE TRANSFERRED IN VIOLATION OF SUCH
      ACT
      AND LAWS, OR AN EXEMPTION FROM REGISTRATION THEREFROM.

     

    THE
      SECURITIES REPRESENTED BY THIS WARRANT CERTIFICATE (INCLUDING THE SECURITIES
      ISSUABLE UPON EXERCISE OF THE WARRANT) ARE SUBJECT TO ADDITIONAL RESTRICTIONS
      ON
      TRANSFER AND OTHER AGREEMENTS SET FORTH IN THE WARRANT AGREEMENT DATED AS OF
      DECEMBER 14, 2007, BY AND BETWEEN THE COMPANY AND THE WARRANT AGENT (THE
“WARRANT AGREEMENT”). COPIES OF SUCH AGREEMENT MAY BE OBTAINED BY THE HOLDER
      HEREOF AT THE COMPANY’S PRINCIPAL PLACE OF BUSINESS WITHOUT
      CHARGE.]

     

    
      	NUMBER	
              WARRANTS

            


    

     

    
      
 

    THIS
      WARRANT WILL BE VOID IF NOT EXERCISED PRIOR TO

    5:00
      P.M.
      NEW YORK CITY TIME, _____________, 2012

     

    GREENSTREET
      ACQUISITION CORP. 

    [CUSIP
      #]

    WARRANT

     

    THIS
      CERTIFIES THAT, for value received ________________________________________
      is
      the registered holder of a Warrant or Warrants expiring _____________, 2012
      (the
“Warrant”) to purchase one fully paid and non-assessable share of Common Stock,
      par value $0.001 per share (the “Shares”), of Greenstreet Acquisition Corp., a
      Delaware corporation (the “Company”), for each Warrant evidenced by this Warrant
      Certificate. The Warrant entitles the holder thereof to purchase from the
      Company, commencing on the later of (i) the completion of a Business
      Combination (as such term is defined in the Amended and Restated Articles of
      Incorporation of the Company), and (ii) ___________________________, 2009
[one
      year after the effective date of the registration
      statement]
      such
      number of Shares of the Company at the price of $6.00 per share, upon surrender
      of this Warrant Certificate accompanied by the annexed duly executed
      subscription form and payment of the Warrant Price at the office or agency
      of
      American Stock Transfer & Trust Company (the “Warrant Agent”), but only
      subject to the conditions set forth herein and in the warrant agreement between
      the Company and the Warrant Agent (the “Warrant Agreement”). The Warrant
      Agreement provides that upon the occurrence of certain events the Warrant Price
      and the number of Warrant Shares purchasable hereunder, set forth on the face
      hereof, may, subject to certain conditions, be adjusted. The term “Warrant
      Price” as used in this Warrant Certificate refers to the price per Share at
      which Shares may be purchased at the time the Warrant is exercised.

     

    No
      fraction of a Share will be issued upon any exercise of a Warrant. If the holder
      of a Warrant would be entitled to receive a fraction of a Share upon any
      exercise of a Warrant, the Company shall, upon such exercise, round up to the
      nearest whole number the number of Shares to be issued to such
      holder.

     

    Upon
      any
      exercise of the Warrant for less than the total number of full Shares provided
      for herein, there shall be issued to the registered holder hereof or his
      assignee a new Warrant Certificate covering the number of Shares for which
      the
      Warrant has not been exercised.

     

    
      
        
        

      

      
        1

        
          

        

      

      
        
        

      

    

     

    
      

      

    

    Warrant
      Certificates, when surrendered at the office or agency of the Warrant Agent
      by
      the registered holder hereof in person or by attorney duly authorized in
      writing, may be exchanged in the manner and subject to the limitations provided
      in the Warrant Agreement, but without payment of any service charge, for another
      Warrant Certificate or Warrant Certificates of like tenor and evidencing in
      the
      aggregate a like number of Warrants.

     

    Upon
      due
      presentment for registration of transfer of the Warrant Certificate at the
      office or agency of the Warrant Agent, a new Warrant Certificate or Warrant
      Certificates of like tenor and evidencing in the aggregate a like number of
      Warrants shall be issued to the transferee in exchange for this Warrant
      Certificate, subject to the limitations provided in the Warrant Agreement,
      without charge except for any applicable tax or other governmental
      charge.

     

    The
      Company and the Warrant Agent may deem and treat the registered holder as the
      absolute owner of this Warrant Certificate (notwithstanding any notation of
      ownership or other writing hereon made by anyone), for the purpose of any
      exercise hereof, of any distribution to the registered holder, and for all
      other
      purposes, and neither the Company nor the Warrant Agent shall be affected by
      any
      notice to the contrary.

     

    This
      Warrant does not entitle the registered holder to any of the rights of a
      stockholder of the Company.

     

    The
      Company reserves the right to call the Warrant at any time prior to its
      exercise, with a notice of call in writing to the holders of record of the
      Warrant, giving thirty (30) days prior written notice of such call at any
      time after the Warrant becomes exercisable if the last sale price of the Shares
      on the American Stock Exchange, or other national securities exchange on which
      the Shares may be treaded, has been at least $11.50 per share (the “Trigger
      Price”) on any twenty (20) trading days within any thirty (30) trading
      day period ending on the third business day prior to the date on which notice
      of
      such call is given (the “Measurement Period”). The Warrant may not be called
      unless the Warrant and the Shares are covered by an effective registration
      statement and a current prospectus from the beginning of the Measurement Period
      through the date fixed for the call. The call price of the Warrants is to be
      $.01 per Warrant. Any Warrant either not exercised or tendered back to the
      Company by the end of the date specified in the notice of call shall be canceled
      on the books of the Company and have no further value except for the $.01 call
      price. The Trigger Price is subject to adjustments as provided in the Warrant
      Agreement.

     

     

    
      	By:	 	 	 
	 	 	 	 
	
              

              President

            	 	 	
              
                

              

              Secretary

            


    

     

    
      
        
        

      

      
        2

        
          

        

      

      
        
        

      

    

    
      

      

    

    SUBSCRIPTION
      FORM - EXERCISE

    To
      Be
      Executed by the Registered Holder in Order to Exercise Warrants 

    


    
      	 	
              o

            	
              The
                undersigned Registered Holder irrevocably elects to exercise___ Warrants
                represented by this Warrant Certificate, and to purchase the shares
                of
                Common Stock issuable upon the exercise of such Warrants, and requests
                that Certificates for such shares shall be issued in the name, and
                delivered to the address, set forth below.


            


    

    


    or
      

     

    
      	 	
              o

            	The undersigned Registered Holder irrevocably elects
              (i)
              to exercise___ Warrants represented by this Warrant Certificate, and
              (ii) to surrender___ Warrants represented by this Warrant Certificate
              (with a “Value” of $___ based on a “Current Market Value” of $___ ) to
              purchase the shares of Common Stock issuable upon the exercise of the
              Warrants exercised hereby, and requests that Certificates for such
              shares
              shall be issued in the name, and delivered to the address, set forth
              below.


    

     

    (PLEASE
      TYPE OR PRINT NAME AND ADDRESS) 

    


     

    (SOCIAL
      SECURITY OR TAX IDENTIFICATION NUMBER) 

    
 

    (PLEASE
      PRINT OR TYPE NAME AND ADDRESS) 

    


    If
      such
      number of Warrants listed above shall not be all the Warrants evidenced by
      this
      Warrant Certificate, the undersigned Registered Holder irrevocably elects that
      a
      new Warrant Certificate for the balance of such Warrants be registered in the
      name of, and delivered to, the Registered Holder at the address stated below:
      

     

    
      	Dated: 	 	 
	 	 	 
	 	 	(SIGNATURE)
	 	 	 
	 	 	 
	 	 	(ADDRESS)
	 	 	 
	 	 	 
	 	 	(TAX IDENTIFICATION
              NUMBER)


    

     

    THE
      SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS,
      STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP
      IN
      AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO SECURITIES AND
      EXCHANGE COMMISSION RULE 17Ad−15).

     

    
      
        
        

      

      
        3

        
          

        

      

      
        
        

      

    

     

    ASSIGNMENT

    To
      Be
      Executed by the Registered Holder in Order to Assign Warrants 

     

     

    
      	For Value
              Received,      	hereby sells, assigns, and transfers
              unto
              	 


    

    


                

    (PLEASE
      TYPE OR PRINT NAME AND ADDRESS) 

    


    


    (SOCIAL
      SECURITY OR TAX IDENTIFICATION NUMBER) 

    


                                   
      of the Warrants represented by this Warrant Certificate, and hereby irrevocably
      constitutes and appoints Attorney to transfer this Warrant Certificate on the
      books of the Company, with full power of substitution in the premises.


    


     

    
      	Dated: 	 	 
	 	 	 
	 	 	(SIGNATURE)


    

     

     

    THE
      SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS,
      STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP
      IN
      AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO SECURITIES AND
      EXCHANGE COMMISSION RULE 17Ad−15).

     

    
      
        
        

      

      
        4