Sony announced via its PlayStation Blog details on the games it will offer for free as part of its "Welcome Back appreciation program."
North American PlayStation Network users will get to choose two games from a list of five games, which Sony claims are BD compatible. They are:
-Super Stardust HD
-Wipeout HD + Fury
These games will be available for 30 days (to download) after the return of the PlayStation Store, which Sony plans to relaunch soon.
PSP owners with a PSN account can download two games from a choice of four, which will also be available for 30 days after the relaunch of the PlayStation Store: They are:
Sony also said that it will offer a number of "on us" movies "over the weekend." Those titles will be announced soon.
Subscribers to various services on PSN will get additional time, and all PSN users will get 30 days of PlayStation Plus. Read the whole thing here. It should be noted that when your PlayStation Plus subscription runs out you lose access to anything you have downloaded / purchased.