Portal 2

PORTAL 2. Valve’s just confirmed that Portal 2 will feature cross-platform play between PS3 and both PC and Mac owners of the game when it releases in April. 
Working together with Sony we have identified a set of features we believe are very compelling to gamers. We hope to expand upon the foundation being laid in Portal 2 with more Steam features and functionality in DLC and future content releases. Valve’s also confirmed it’ll include a “Steam Play” of the game with every copy of the PS3 version, which means a Steam key for the PC and Mac version will be included.Features also confirmed a “persistent cloud-based storage of PS3 saved games” as well as cross-platform chat on PS3, PC and Mac.

“We made a promise to gamers at E3 that Portal 2 for the PlayStation 3 would be the best console version of the product,” said Valve boss Gabe Newell.

Portal 2 is an upcoming first-person action/puzzle video game, developed by Valve Corporation. It is the sequel to the critically acclaimed 2007 video game Portal and was announced on March 5, 2010, following a week long alternate reality game based on new patches to the original game. Though initially slated for release in the last quarter of 2010, the game was postponed to the week of April 18, 2011. The game will be released by Valve, through both retail and Steam, for Microsoft Windows and Mac OS X; PlayStation 3 and Xbox 360 versions of the game will be distributed by Electronic Arts. All versions of the game will become available simultaneously.