X0203 3 2011-05-05 0 0001476719 57th Street General Acquisition Corp CRMB 0001044321 MARXE AUSTIN W & GREENHOUSE DAVID M C/O SPECIAL SITUATIONS FUNDS 527 MADISON AVENUE, SUITE 2600 NEW YORK NY 10022 0 0 1 0 Common Stock 663900 I By Limited Partnerships Warrants 11.5 2011-05-05 2016-08-16 Common Stock 635000 I By Limited Partnerships This is a joint filing by Austin W. Marxe (Marxe) and David M. Greenhouse (Greenhouse). They share voting and investment control over all securities owned by Special Situations Fund III QP, L.P. (SSFQP), Special Situations Cayman Fund, L.P. (Cayman) and Special Situations Private Equity Fund, L.P. (PE). 453,018 shares of Common Stock are held by SSFQP, 148,400 shares of Common Stock are held by Cayman and 62,482 shares of Common Stock are held by PE. The interest of Marxe and Greenhouse in the shares of Common Stock owned by SSFQP, Cayman and PE is limited to the extent of his pecuniary interest. This is a joint filing by Austin W. Marxe (Marxe) and David M. Greenhouse (Greenhouse). They share voting and investment control over all securities owned by Special Situations Fund III QP, L.P. (SSFQP), Special Situations Cayman Fund, L.P. (Cayman) and Special Situations Private Equity Fund, L.P. (PE). 437,746 Warrants are held by SSFQP, 140,511 Warrants are held by Cayman and 56,743 Warrants are held by SSPE. The interest of Marxe and Greenhouse in the shares of warrants owned by SSFQP, Cayman and PE is limited to the extent of his pecuniary interest. Austin W. Marxe 2011-05-17 David M. Greenhouse 2011-05-17