Does anyone know if it's going to be backwards compatible? I mean I don't have a PS3 yet (kinda hard when your trying to scrounge money...no place hiring yet -_-;) and I found out they are making a Kingdom Hearts 1.5 HD Remix....plus there's some awesome PS2 HD remakes I would looooove, plus Nino no kiri that looks so awesome I don't want to miss those but in the same time I'd rather be up to date I suppose?. --- Current Systems: 3DS, DSlite, IPod Touch If There is Evil in this world it lurks in the hearts of Man- Tales of Phantasia
No one knows. If they say they do they're a liar. Anything posted about PS4 is a rumor.
Chances are very good that the PS3 will still get support even years after the PS4 comes out. I can't say that for sure though, that would make me a rumor spreading (possible) liar. But the PS2 still got quite a bit of support after the PS3 came out.
All I can say is you'll have to wait until there is some sort of official announcement.