Sony doesn't give a shit about retro compatibility for their consoles, and with Jim Ryan at the helm of Playstation, I don't think it's going to change any time soon.
I looked at the consoles that Analogue made, the ones that play games from various devices, and how popular they are with enthusiasts.
If Sony were to put out a retro Playstation console that could play all of your PS1, PS2 and PS3 discs (similarly to the launch PS3), would you be interested in buying it? Hell, we could also put the PSP in there. I'm talking discs, here. That machine would read CDs, DVDs, Blu-rays and UMDs.
Honestly, I'd probably buy one. It's not ideal, of course. The right thing to do would be to keep retro compatibility alive with each new Playstation. But shit, if that's what it takes for old games to be preserved somehow, I'd be down. I have so many PS1, PS2 and PS3 games. I'd love having a modern box that could play all of them. Especially if there'd be some new bells and whistles in it, such as save states and an upscaler.