This seems to get worse for Microsoft.

The law firm Robbins Geller Rudman & Dowd has filed a class-action suit against Microsoft over what it claims was misleading information on the company's Surface RT sales.Class-Action Lawsuit Filed Against Microsoft Over Surface RT Sales [zdnet.com]

The firm is claiming that Microsoft "issued materially false and misleading statements regarding the Company’s financial performance and its tablet computer, the Surface RT." It is claiming that the company's financial statements for the quarter ending March 31, 2-13 were "materially false and misleading" and that Microsoft officials made misleading positive statements about the Surface RT during the "class period."