Okay so the situation I have is this. I have a UK Vita that I have been using with my Japanese PSN account perfectly fine for a few months. I can access the store and buy/download games no problem. Using a Japanese account to patch Japanese games is easy enough.
The question I have is what if you have the Asian (Hong Kong) version of a game with a non-HK region PSN ID? For that matter what happens when any game of one region is used in the Vita with an account from a different region? Will the game simply find the corrosponding (in my case, Japanese) patch for the game?
I ask because I am considering importing Zero no Kiseki Evolution and by all accounts the game is a buggy, unplayable mess pre-patch. I could get the Japanese version to ensure full compatability but the Japanese versions tend to be priced higher than their Asian counterparts.