01-16-2013 02:21 AM
The only way works like this:
You have to do a system restore which takes only a moment. Before doing this its ideal that you make sure your saves and data are saved somewhere like another memory card or on the PC.
After the restore you set date, time, and watch opening movie. Then simply log into the other account you wanted to switch to.
If you're switching now and then its not so bad, but it is a hassle if you're constantly needing to switch accounts.
To go back to the first account in which you started from, you do the same process: backup, restore, re-login with desired account.
Its possible. For more information check this page: http://www.destructoid.com/how-to-use-ps-vita-with
Its basically everything I just told you though.
Hope that helps.