[quote name='snowsquirrel']joystiq is now reporting that there is a disclaimer on the 80GB box stating that it will have limited BC with PS2/1 titles.
My guess is that this is just covering their butts until the s/w emulation is up to speed. The s/w emulation will be more flexible, and should allow more games to work. Most people have a negative view of s/w emulation because the emulators they use are reverse engineered. The EE emulator would be written with intimate knowledge of the chip. True s/w emulation is _very_ slow, but the Cell should easily be able to handle it.
I wouldn't be suprised if eventually the s/w emulation has a higher number of BC titles, thus leading it to be used on machines even with the EE chip.
Nonetheless, I am happy to have my 60GB.[/quote]If they put effort into it over the life of the system, I'm sure they could approach 100% software compatibility. But they won't, and it doesn't do much good if it takes 5 years.