OH i have a vita too but not many games on it. :< It tends to give me a headache after playing it for a bit, guess I'm not used to the screen. Which games do you have for it?
But yeah, I don't really get both versions anymore, stopped in D/P and even then it doesn't count much since I got the Japanese Pearl because I couldn't wait for D/P's English release aha. Got English Diamond when it came out!