Its sort of like an extension to the PS3. Most of the PSN games that I don't have time to play at home, I can play when I'm not home
As for Vita specific games, yeah, the list is short. I have Persona 4 Golden, that's it ...
Except that's not a new version...
Gamespot has linked the patent diagrams for the Vita dev unit. The patent may have been published this week, but it was filed months ago.
This isn't anything new at all. *yawn*