[quote name='Kanik']Not exactly. Only one account can be "active" on a system at a time. Up to 5 psp's can have the same account active. They can all play the same PSP game at the same time, but can't all go online on infrastructure at the same time. (because that involved logging in with you PSN ID, and only one ID is allowed online at a time)
So games like Monster Hunter, all 5 people could play together, even over ad-hoc. MotorStorm though, only one user could go online at a time because it uses the PSN for online play. (the number of PSN-online games are few, the big titles consisting of MotorStorm, Star Wars Battlefront and PixelJunk Monsters.)[/QUOTE]
Ah that works fine for my purposes, can make a new account buy a second copy of anything that infrastructure is really important to play together. Cool.