THE PLAYSTATION 4 COMES OUT IN 20 DAYS. HERE IS SOMETHING INTERESTING, REMEMBER WHEN WE DID THE PREVIEW MONTHS AGO AND CHECKED THE SPECS ON EACH SYSTEM??? REMEMBER WHEN IT WAS UNKNOWN ABOUT THE CONTROLLERS AND THE COMPATIBILITY TO THE SYSTEM? WELL TODAY WE FIND OUT THAT THE PS3 JOYSTICKS ARE COMPATIBLE WITH SOME OF THE PS4 GAMES AND ALSO, THE PS4 JOYSTICKS ARE COMPATIBLE WITH SOME OF THE PS3 GAMES. THEY MUST BE PLUGGED IN WITH THE USB CORD AT ALL TIMES THOUGH.
Udetto created a video demonstrating this in action, but he noted games that require a wireless configuration/elements would not be supported by the new PS4 controller, at least currently.
Still, when next generation joysticks start hitting the PS4, it's likely/possible you'll be able to use them on your PS3, which would be a pretty nifty thing to have going for the FGC. Also, if you're a pad player, and like the new controller setup, this is potentially good news as well.