That would be nice although it uses PS3 in Japan.
I think we also are getting the updated Vita but no date.
The Vita seems to be the best of all worlds if you want to stay in the Sony eco system. You can load up ISO's of PSP games and get access to the PSN as well as the Vita only games.
My eyes are set on Persona, Ys, BlazBlue, Muramasa, Hot Shots Golf (cause I love that series,) Dragons Crown, but if I can get the D&D games on the vita, then those first. lol
there are also a few other games, but those would be my top want for the Vita for now.