Sony Online Entertainment, a subsidiary of Sony, has stated that all of their databases are separate from those used for the PlayStation Network/Qiriocity, and that they will "make good" to those who feel hard done by.
All of their games are currently working on the PC, and they've been running promotional events to keep spirits high. They've also stated that they will make PS3 players feel very welcome when they return.
More details will be published soon about these things, but DC Universe Online and Free Realms will be the games that receive the most attention.
Source: Game Informer