And you realize that downloadable games are practically the same disc-images? Or are you talking about PSP-Minis?PSP isn't dual core, and they'd only need to emulate it for Digital download games, not UMD games, since it's not going to have UMD. They can probably recompile hits from the umd library and offer it digitally.
As soon as you start with recompiling, thats a tad different than emulating. It might be viable for future games, but why not just recompile the thing to the android-plattform then.
Dont think so, PSX2 is still beeing bottlenecked by (PS2-)CPU-emulation on my 2,5 GHz Athlon 64 X2. Sure PS2 CPU is harder to emulate than the one (two as the Media-Engine is another 333MHz MIPS CPU without Vector-Unit but otherwise identical) in the PSP but not enough that I`d think it would be emulated comfortably on a 1,5GHz ARM.A dual core Ghz class ARM + a good gpu should be plenty to emulate the PSP.