I only know of one, which is the NISA released version. The trailer had American voice actors, so I'm assuming the entire game does, as well. In retrospect, I suppose it's possible they have both English and Japanese voice options; I'll have to check into that. Though this will give me an incentive to learn Japanese quicker.
Oh, it does? Multiple voice options, then?
Ah, gotcha. Well, I guess I'll be saving up for a new game
And game system. I have yet to buy a Vita. I was considering waiting until my Japanese improved and then getting one for Japan's Region (Region 2?), so I could get the games fresh off the market. I guess I'll be looking into that, as well.