ps3 games splitscreen

Can you play 4 play split screen online with only one PSN account á la XBL in the following games?
Warhawk
Resistance
UT III

Plz answer, just got a ps3 and I want to get those game

You can play only in 2 player split screen in Warhawk. In resistance you can't play splitscreen online. I've never tried UT3 but I'm pretty sure you can play only in 2 player splitscreen mode online.lupoianflaviu

actually u can have 4 player splitscreen online with warhawk, and with UT3 there is no splitscreen at all. resistance there is no splitscreen online, but there is offline. hopfully resistance 2 will have online splitscreen