LOCK-UP
AGREEMENT

       

      
        
          
            	 
      	
                          
                      June
      1, 2009

                    

                  


          

        

      

      


      
        	
                To:

              	
                Trestle
      Holdings, Inc.

              


      

      1328 W.
Balboa Blvd. Suite C

      
        	
                 
      

              	
                Newport
      Beach, CA 92661

              


      

      


      
        	
                 
      

              	
                Re:

              	
                Shares
      of Common Stock of Trestle Holdings,
Inc.

              


      

      


      Dear
Sirs/Madams:

      


      In accordance with that certain Share
Exchange Agreement, dated of even date herewith (the “Exchange Agreement”), by
and among Trestle Holdings, Inc., a Delaware corporation (“Trestle”), MoqiZone
Holdings Limited, a Cayman Islands corporation (the “Company”), Lawrence Cheung
(“Cheung”), MKM Capital Opportunity Fund Ltd., a Cayman Islands corporation
(“MKM”), and each of the shareholders of the Company set forth on the signature
pages annexed thereto (the
“Purchasers”),  the undersigned (“Restricted Person”) hereby agrees
that, for a period of twelve (12) months following the effective date of the
registration statement registering all of the common stock underlying the
preferred stock and warrants to be issued pursuant to the Share Exchange and the
Offering, as such term is defined in the Exchange Agreement, for resale under
the Securities Act of 1933, as amended (the “Lock-up Period”), the
undersigned will not, directly or indirectly, without the prior written consent
of  MKM, which consent may be delayed, conditioned or withheld, at
MKM’s sole discretion, offer for sale, sell, pledge, assign, hypothecate or
otherwise create any interest in or dispose of (or enter into any transaction or
device that is designed to, or could reasonably be expected to, result in any of
the foregoing) any of the common stock, par value $0.001 per share, of Trestle
(the “Common Stock”), or any security or other instrument which by its terms is
convertible into, exercisable for, or exchangeable for shares of Common Stock,
including, without limitation, the shares of Series B voting convertible
preferred stock of Trestle (“Common Stock
Equivalents”);
provided, however, that no
Restricted Person shall, during the twelve (12) months following the Lock-up
Period, sell more than one-twelfth (1/12th) of
their total holdings of Common Stock and Common Stock Equivalents during any one
(1) month period.

      


      The restrictions described in the
immediately preceding paragraph do not apply to the following dispositions of
Common Stock:

       

      (a)         The
Restricted Person may transfer Common Stock to his or her spouse, siblings,
parents or any natural or adopted children or other descendants or to any
personal trust for the sole benefit of such family members and/or Restricted
Person;


      
        
           


        

        
           


          
            

          

        

        
           


        

      


      (b)         Each
Restricted Person may transfer Common Stock on his or her death to such
Restricted Person’s estate, executor, administrator or personal representative
or to such Restricted Person’s beneficiaries pursuant to a devise or bequest or
by laws of descent and distribution;

      


      (c)         Each
Restricted Person may transfer Common Stock as a gift or other transfer without
consideration;

      


      (d)         Each
Restricted Person may make a bona fide pledge of Common Stock to a lender;
and,

      


      (e)         Each
Restricted Person may participate in any transaction in which all holders of the
Common Stock of the Company participate or have the opportunity to participate
pro rata, including, without limitation, a merger, consolidation or binding
share exchange involving the Company, a disposition of the Common Stock in
connection with the exercise of any rights, warrants or other securities
distributed to the Company’s stockholders, or a tender or exchange offer for the
Common Stock,

      


      provided, however, that in
the case of any transfer of Common Stock pursuant to clauses (a), (c), and (d),
the transferor shall, at the request of the Company, provide evidence (which may
include, without limitation, an opinion of counsel satisfactory in form, scope
and substance to the Company in its sole discretion as the issuer thereof)
satisfactory to the Company that the transfer is exempt from the registration
requirements of the Securities Act, and such Common Stock shall remain subject
to this Agreement and, as a condition of the validity of such disposition, the
transferee shall be required to execute and deliver a counterpart of this
Agreement. Thereafter, such transferee shall be deemed to be the Restricted
Person for purposes of this Agreement.

      


      Trestle and its agents, including
its transfer agent, are authorized to decline to make any transfer of securities
if such transfer would constitute a violation or breach of this Lock-Up Letter
Agreement.

      


      The undersigned’s obligations under
this Lock-up Agreement shall be binding upon the undersigned’s successors,
heirs, personal representatives and assigns, as the case may be.

      


      The undersigned hereby warrants and
represents that the undersigned has the full authority and capacity to enter
into and carry out all the terms of this Lock-up Letter Agreement and is not
subject to or bound by any agreement or instrument, or the order of any court or
other governmental authority which in any way restricts the undersigned’s
authority or capacity to enter into and carry out all the terms of this Lock-up
Agreement.


      
        
           


        

        
          -2-

          
            

          

        

        
           


        

      


      This Lock-up Agreement, and all
rights and obligations of the undersigned, shall be construed and enforced in
accordance with and governed by the law of the State of New
York.  This Lock-up Agreement shall be subject to the exclusive
jurisdiction of the courts of New York County, New York. Any breach or default
of any provision hereof shall be deemed to be a breach or default occurring in
the State of New York by virtue of a failure to perform an act required to be
performed in the State of New York, and the undersigned, for himself and its
lawful successors, irrevocably and expressly agree to submit to the jurisdiction
of the courts of the State of New York for the purpose of enforcing the terms of
hereof and the transactions contemplated hereby.  The undersigned
irrevocably waives (for himself and its lawful successors), to the fullest
extent permitted by law, any objection which they may now or hereafter have to
the laying of venue of any suit, action or proceeding arising out of or relating
to this Lock-up Agreement or any judgment entered by any court in respect hereof
brought in New York County, New York, and further irrevocably waives any claim
that any suit, action or proceeding brought in New York County, New York has
been brought in an inconvenient forum.

      


      [Signature page
follows.]


      
        
           


        

        
          -3-

          
            

          

        

        
           


        

      

      


      
        
          
            
              
                
                  
                    	 
      	Very
      truly yours,
	 
      	 	 
      
	
                            Date:______________,
      2009

                          	 	  
      
	 
      	 	
                            Signature

                          
	 
      	 	 
      
	 
      	 	  
      
	 
      	 	
                            Print
      Name of
Signatory