Switching PSN accounts

[Sarthraa]

Hey all, I had posted earlier about the download size for PSO2 for the Vita, but I had another question. I know you have to create a Japanese PSN account in order to download PSO2, but I'm new to the Vita itself. Would I be able to switch back to my North American PSN account to play my other games that I've purchased or am I tied to one account per system?

[blace]

You can switch between accounts, but you'll have to reset your system each time to do so as well as needing two separate memory cards for the accounts as the memory cards are tied to an account.

[Sarthraa]

Aw, that's a bit of a bummer to have to buy a second memory card. Might be for the best anyway, since PSO2 will take up most of an 8GB memory card anyway. I just bought a PS Vita tonight and it comes with an 8 GB card.