Document:

RETURN
      TO TREASURY AGREEMENT 

    

    THIS
      AGREEMENT is
      made
      as of the 27th
      day of
      December,
      2007

    

    BETWEEN:

    

    MARINE
      PARK HOLDINGS, INC.,
      a
      corporation formed pursuant to the laws of the State of Delaware and having
      an
      office for business at 850 Third Avenue, Suite 1801, New York, New York 10022
      (the “Company”)

    

    AND:

    

    DIVERSE
      TRADING LTD.,
      a
      British Virgin Islands corporation and having an office for business at
      _________________________ (the “Shareholder”).

     

    WHEREAS:

    

    A. The
      Shareholder is the registered and beneficial owner of 1,000,000 shares of the
      Company’s common stock.

    

    B. The
      Company has entered into a Share Exchange Agreement with NewCardio, Inc., a
      Delaware corporation, and certain other parties (the “Merger
      Agreement”).

    

    C. As
      a
      condition to the aforementioned Merger Agreement, the Shareholder has agreed
      to
      return Sixty Thousand Fifteen (60,015) shares of the Company’s common stock (the
“Surrendered Shares”) held by them to the treasury of the Company for the sole
      purpose of the Company retiring the Surrendered Shares.

    

    NOW
      THEREFORE THIS AGREEMENT WITNESSETH THAT
      in
      consideration of the premises and sum of $1.00 now paid by the Company to the
      Shareholder, the receipt and sufficiency whereof is hereby acknowledged, the
      parties hereto hereby agree as follows:

    

    Surrender
      of Shares

    

    1. The
      Shareholder hereby surrenders to the Company the Surrendered Shares by
      delivering to the Company herewith a share certificate or certificates
      representing the Shares, duly endorsed for transfer in blank, The Company hereby
      acknowledges receipt from the Shareholder of the certificates for the sole
      purpose of retiring the Surrendered Shares.

    

    Retirement
      of Shares

    

    2. The
      Company agrees, subject to section 3 hereof, to forthwith after the closing
      of
      the Merger Agreement to retire the Surrendered Shares pursuant to §243 of the
      Delaware General Corporation Law and to deliver to the Shareholder a balance
      Certificate free of restrictive legends. .

    

    Condition
      Precedent

    

    3. Notwithstanding
      any other provision herein, in the event that the transactions contemplated
      by
      the Merger Agreement do not close on or before the deadline set forth is said
      Merger Agreement, this Agreement shall terminate and the Company shall forthwith
      return to the Shareholder the certificates representing the Surrendered
      Shares.

    

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    

    Representations
      and Warranties

    

    4. The
      Shareholder represents and warrants to the Company that it is the owner of
      the
      Surrendered Shares and that it has good and marketable title to the Surrendered
      Shares and that the Surrendered Shares are free and clear of all liens, security
      interests or pledges of any kind whatsoever. 

    

    General

    

    5. Each
      of
      the parties will execute and deliver such further and other documents and do
      and
      perform such further and other acts as any other party may reasonably require
      to
      carry out and give effect to the terms and intention of this
      Agreement.

    

    6. Time
      is
      expressly declared to be the essence of this Agreement.

    

    7. The
      provisions contained herein constitute the entire agreement among the Company
      and the Shareholder respecting the subject matter hereof and supersede all
      previous communications, representations and agreements, whether verbal or
      written, among the Company and the Shareholder with respect to the subject
      matter hereof.

    

    8. This
      Agreement will enure to the benefit of and be binding upon the parties hereto
      and their respective heirs, executors, administrators, successors and permitted
      assigns.

    

    9. This
      Agreement is not assignable without the prior written consent of the parties
      hereto. 

    

    10. This
      Agreement may be executed in counterparts, each of which when executed by any
      party will be deemed to be an original and all of which counterparts will
      together constitute one and the same Agreement. Delivery of executed copies
      of
      this Agreement by telecopier will constitute proper delivery, provided that
      originally executed counterparts are delivered to the parties within a
      reasonable time thereafter.

    

    IN
      WITNESS WHEREOF
      the
      parties have executed this Agreement effective as of the day and year first
      above written.

     

    
      
        	
                MARINE
                  PARK HOLDINGS, INC.

              
	 
	
                By:

              	/s/
                David Stefansky	 
	
                           
                  David Stefansky

              
	
                           
                  President, Chief Executive Officer and

              
	
                           
                  Chief Financial Officer

              
	 
	
                SHAREHOLDER:

              
	 
	
                DIVERSE
                  TRADING LTD.

              
	 
	
                By:

              	 	 

      

    

    

    
      
        
        

      

      
        -
          2
          -Exhibit
      10.30

    AMENDMENT
      NO. 5

    to

    AGREEMENT
      AND PLAN OF REORGANIZATION

    Dated
      February 19, 2007

    

    

    THIS
      AMENDMENT NO.5 (the "Amendment"), made as of this 31st
      day
      of
      December, 2007, is made by and among Magnitude Information Systems, Inc.
      ("Magnitude"), Kiwibox Media, Inc. ("Kiwibox"), Michael Howard, Lin Dai and
      Ivan
      Tumanov, individuals, who are the shareholders of Kiwibox (the "Kiwibox
      Shareholders").

    

    BACKGROUND:

    

    WHEREAS,
      Magnitude, Kiwibox and the Kiwibox Shareholders executed and delivered a certain
      Agreement and Plan of Reorganization, dated February 19, 2007 (the "Agreement")
      that scheduled the closing of the transactions described therein to take place
      on or before March 31, 2007 and extended the closing date from on and about
      March 31, 2007 to May 15, 2007 by virtue of Amendment No. 1 dated April 4,
      2007;
      and

    

    WHEREAS,
      due to certain delivery requirements, the parties further amended the Agreement
      and rescheduled the closing date from on or about May 15, 2007 to June 18,
      2007
      by virtue of Amendment No. 2, and;

    

    WHEREAS,
      on July 30, 2007 the parties executed and delivered Amendment No. 3 to the
      Agreement providing for (A) a new schedule for the payments due to the Kiwibox
      Shareholders; (B) a new schedule for the overall investment of the $3.5 million
      Magnitude has committed to raise and invest into Kiwibox; (C) certain penalty
      provisions and termination rights in the event of an uncured default, and;
      (D) a
      new closing date of August 16, 2007;

    

    WHEREAS,
      the Kiwibox acquisition closed on August 16, 2007 and due to delays by Tell
      Capital AG in its payments commitments, the parties have agreed to extend the
      Company payment date for the payment due November 1, 2007 in the amount of
      $625,000 until December 31, 2007 in consideration of certain cash payments
      agreed to be made by Magnitude;

    

    WHEREAS,
      the parties, in their respective best interests, desire to further amend the
      Agreement to accommodate the investment schedule for the Kiwibox
      investments.

    

    NOW,
      THEREFORE, in consideration of the mutual promises and covenants made by the
      parties to each other, the parties agree as follows:

    

    A.
      Amendment of Agreement: The
      parties hereto agree to amend the Agreement, as amended by Amendment No. 3
      and
      Amendment No. 4 to the Agreement effective as of the date set forth above,
      as
      follows:

    

    1.
      Magnitude $3.5 million Investment. Section
      3D of Amendment No. 4 shall be amended by deleting the date of December 1,
      2007
      and substituting in lieu thereof the date of January 1, 2008:

    

    2.
      Magnitude $3.5 Million Investment.
      Section
      3E of Amendment No. 3 shall be amended by deleting the date of February 1,
      2008
      and substituting in lieu thereof the date of March 1, 2008 

    

    3.
      Magnitude $3.5 Million Investment.
      A new
      Section 3(H) and a new Section 3(I) shall be inserted into Amendment No. 3,
      adding the following new provisions: 

    

    (H)
      On
      the earlier date of January 31, 2008 or the date Magnitude receives sufficient
      funds to make a payment of $50,000, Magnitude shall make a payment of $50,000
      to
      the shareholders of Kiwibox. In the event that the $1,340,000, representing
      the
      balance due of the $3 million commitment of Tell Capital AG made to Magnitude
      (which amount includes the $625,000 Kiwibox Funding Amount due January 1, 2008),
      is not received on or before January 31, 2008, Magnitude shall make an
      additional payment of $50,000 to the Kiwibox shareholders on January 31, 2008,
      and the due date for the receipt of the $1,340,000 shall be extended to February
      5, 2008. All Magnitude payments made under this Section 3(H) shall be disbursed
      33 and 1/3% to each of the three Kiwibox shareholders. 

    

    (I)
      On or
      before April 1, 2008, Magnitude shall make a payment of $50,000 to the
      shareholders of Kiwibox. In the event that the $1,700,000 Kiwibox Funding Amount
      is not received on or before April 1, 2008, Magnitude shall make an additional
      payment of $50,000 to the Kiwibox shareholders on April 1, 2008, and the due
      date for the receipt of the $1,700,000 shall be extended to April 5, 2008.
      All
      Magnitude payments made under this Section 3(I) shall be disbursed 33 and 1/3%
      to each of the three Kiwibox shareholders. 

    

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    

      B.
        Reconfirmation. The
        parties hereto reconfirm and acknowledge the legal viability of the Agreement,
        including Amendments No. 1, No. 2, No. 3, No. 4 and this Amendment No. 5
        thereto
        between them as well as all of the terms and provisions of the Agreement
        and
        amendments not modified by this Amendment.

      

      IN
        WITNESS WHEREOF, the parties have signed this Amendment as of the day, month
        and
        year first above written.

       

    

    
      	Kiwibox Media, Inc. 	 	 	Magnitude Information Systems,
              Inc.
	 	 	 	 
	By:
              /s/ Lin
              Dai	 	 	By:
              /s/ Edward L. Marney
	
              
                
Lin
                Dai, President

            	 	 	
              
                
Edward
                L. Marney,
                President

            

     

    
      	/s/ Ivan Tumanov	/s/ Michael Howard	/s/ Lin Dai
	
              
Ivan
              Turmanov	
              
Michael
              Howard 	
              
Lin
              Dai
	Kiwibox Shareholder 	Kiwibox Shareholder 	Kiwibox Shareholder

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