3.18 vita is even better than psp imho. Analog dualshock controller mode support, two analog sticks, better screen, longer battery life, screen-shot support from menu etc.
a 6.60 psp and a 3.18 vita has same PS1 games compatibility if you are using TN-X. Except some games need popsloader which isn't possible on Vita. There are even a few tricks to make them work on vita. In the end, if you aren't nutpicking, TN-X compatibility is perfect.
a 6.60 psp and a 3.18 vita has same PS1 games compatibility if you are using TN-X. Except some games need popsloader which isn't possible on Vita. There are even a few tricks to make them work on vita. In the end, if you aren't nutpicking, TN-X compatibility is perfect.

