I only got 3 games for my vita so far. shinobido 2, katamary damacy, and wipeout2048. my vita got froze couple times when I play those game, but especially wipeout2048, because it happen twice when wipeout2048 froze and i restart it, it shows the screen that allows you to choose 5 options. Restart, rebuild, format, restore, update. and after i click restart, everything works fine again, so i don't really know the problem is on the game or system, because this type of froze only happen on wipeout2048, other 2 can just simply restart.
I got 8GB memory and a week ago I download cliff diving into my vita. so i still don't know what is the cause of problem, if is memory or game then is easier to solve, just hope is not hardware. thanks for your reply btw
I am sure that the problem is not due PS Vita. Some games froze: for example, I have played FIFA soccer and always FPS fall down when players are in formation. In your case, WipeOut as racing game demands a little more of resources. Wait for a patch to fix the problem.