I get it, thanks.
This sucks. I'll probably only purchase the Vita if Sony fix this via firmware update. I dunno, I have a lot of thinking to do.
It's their fault for allowing me to have a collection of PSP, PS1 and minis games across multiple accounts on PS3. But this isn't as big a problem as it is with the issue of Vita's Trophies and DLC.
See, as an European, forget importing Persona 4 The Golden from the US when it comes out. If you care about buying eventual additional content for the game, you'll have to wait to see if the game will have DLC or not.
Also, some people who created a new PSN account because you're not allowed to change your PSN ID will get screwed by this as well if they currently use content from their previous account.
But I'm going to wait until people have their Vitas to be trully outraged by this.