Yea, I just played POP on the psp, they really did an excellent job porting it. I think the reason the games voices dont sync is because your running your system as 333mhz. I did both 222 and 333, and found that to be the issue. I'd much rather of had Sands of Time because I didn't care much for this one, but it's still a very fun game for the psp.
-Ben