iWiCkeD wroteHeads up,
I read the other day that @ the E3 event (which is very soon) Sony will announce a new premium service for the PSN Live. Which means that they're gonna start charging for online gaming....however, there are still no details on this matter, so stay tuned for Sony's keynotes at this year E3 event.
Sony have stated many countless times that the service in its current form will remain
FREE; i.e. the online play will remain free.
What they're going to charge for is additional stuff that they'll add to the basic free service.