That's why I believe Sony is making a huge mistake. If they only have one model in the future, they're going to need backwards compatibility. They kicked ass with the PS2, but they're not king of the console game anymore.
I disagree. They are not going to stop selling PS2 anytime soon, so no one needs backwards compatability. No BC means a cheaper PS3 and the end of confusing model differences.
I have no desire to play PS2 games. If I ever do, I would rather buy a PS2 that can be setup in a different room, rather than play it stretched out all ugly-like on my big HDTV.