1.touch screen
2.fold screen
3.camera / video
4.some type of interal memory (whether flash or hdd)
5.dual analogs
6. app store (just add it to the psn)
7.hell of a nice battery
8.priced at or under $200 at launch
9.games on memory sticks (or something like umd but not as battery killing) but also 100% available for download on the store. plus all psp1 games on the store! (maybe even at lower prices)
10.better internet browser