Reader Brad Marr couldn't wait until next month for his PS Vita and decided to import one from Hong Kong. It just so happens he also used to live there, so his PSN account is linked to that region. With all the back-and-forth regarding PlayStation Vita and PSN, Brad thought he'd share his experiences with us.
I've always had a Hong Kong PSN account, because I made it when I lived there, but my girlfriend has an Australian account. Now that I live in Australia and buy Australian games, I have to download DLC from her account to run on my PS3; it's almost the same with the Vita.
I've downloaded a PSP game on her account on the PS3, switched over to the account that matches with the Vita and I've transferred the game to the Vita. It works because the one PlayStation shares all the DLC it gets from all accounts.
Hopefully this tidbit has proved useful. If you have any specific questions regarding the Vita, share them here -- Brad might be in a giving mood today!