PSVita supports multiple PSN Accounts per system, but only if you have multiple memory cards.

[Euphoria14]

The only thing I believe should happen to quiet much of the complaining would have been to package the Vita with a 2-4GB card.

By the way, have these US memory card prices been confirmed or are they placeholders? Hopefully, similar to the PSP, the cards come down in price. That or some 3rd party companies release clone cards.

 

I also hope that since it is cart based we end up getting a Pro Action Replay for the Vita. :)