I was wondering how that's going to work too. I'm thinking that when you first start the game it will ask you to sign into your Trion account. Then it will probably link your Trion account with your PSN account.
word is that the trion account works cross console sorta
you can log into the same trion account on pc/ps3/360 but you'd have to buy the game and make new characters for each system
so 1 trion account with ego bonus's could be used for all 3 systems
I'm assuming that you'll sign into psn then when you launch the game it'll ask you to link to a trion account similar to games like battlefield 3 and farcry 3 --- Xbox / PS3 / Iphone gamecenter: Strigol