What if Valve Took Over the PSN?
What we’re essentially theorising here is the PS3’s online capabilities – gaming, chat, store, the whole deal – could run on Steam…
Steam
The PS3 Gamer’s Guide to Steam: Part 2
You can chat to your friends using text or voice chat, again even if you’re not on the same type of system…
The PS3 Gamer’s Guide to Steam: Part 1
as this is a getting started guide … we’ll point you to some great freebies on Steam