The ESRB recently rated several games from SNK’s Neo Geo console as PlayStation 3 and PlayStation Portable games.
The lucky games were Alpha Mission II, Baseball Stars Professional, League Bowling and Super Sidekicks. With games from Hudson’s Turbografx consoles also hitting PSN, this seems more likely.
Is Sony trying to mimic the Wii’s Virtual Console? Could be possible, they’re already trying to copy motion controls (*Points to ‘the Wand’*).