Arcturus on 01 February 2013
I honestly couldn't care less about backwards compatibility on the PS4. I have a backwards compatible PS3 and in the 5+ years I've owned it, I've never once had the urge to play a PS1 or PS2 game. I have limited free time to spend on gaming, and I'd rather play and experience new games instead of replaying old PS1 and PS2 games.
If Sony managing to pull off some form of BC in the PS4, it will most likely be:
1) Emulation of PS1, and maybe PS2 games
2) BC streaming service for PS3 and PSN games
3) the BC streaming service would probably not be available at launch
4) The BC streaming service will most definitely be a paid service, and will most likely be in addition to PSN+
