I have frantix, lumines, and untold legends. My only complaint is in the design of the PSP.. The form of it makes my hands fall asleep when playing for long periods of time.. Then again so does jerking off.. maybe its me..
ANywaY, the good thing about the PSP is the ability to backup games and place them on a memory stick(Sony does not endorse this). It is also made to be upgradeable(software) and there is the potential for many accessories in the future.