"Last week I posted a news story where Sony tells you how to transfer digital PSP games from your PSN SEN account. Along with the simple instructions, they also provided a list of Vita-compatible games, a paltry 275 out of the several hundred available for purchase on the PlayStation Store. I was sad that many of my favorites didn't seem to make the initial cut -- Valkyria Chronicles II, Puzzle Quest: Challenge of the Warlords, and were the ones that hurt the most.
Well, it seems that several games were inexplicably left off of that list, as several people are reporting that Valkyria Chronicles II is transferrable from a PS3. I tried it out and can confirm it to be true. I also gave a few other unlisted games a shot, and was able to transfer Puzzle Quest and Crush. Alas, PixleJunk Monsters is indeed currently incompatible."