Will never buy another Sony product again !
Ofcourse you will be able to root it, play psx backups and if you buy sixaxis controller app even play these backups with your dualshock 3 controller, just as im doing it now on my htc desire hd.
Sometimes with the prices on some Sony products I am baffled on how they are still in business.
What's the one thing on this planet more useless than a Netbook? You guessed it! The tablet.