Stella for the PS3 has been updated. Yes play Atari 2600 games on your PS3 console provided you have CFW.
Newest version and probably final version of stella for the ps3. This emulator was ported by Robo Hobo. From what I read about it on PSX scene it works flawlessly now with 100 percent game compatibility. I haven't tested it yet myself however.
Keep checking this thread for more emulator news if you care.