The PS3 is updated occasionally with new features added & etc.
I’ll also add that the PS3 can stream audio/Videos direct from an UPNP media server … that’s Tversity for windows users, or mediatomb in linux
I’m currently streaming (compressed) HD trailers, approx 2 min length, Avi’s & MP3’s, across a 108Mb/s Wifi bridge from my two desktop PC’s, and all works great - no stutters
Unfortunately, the PS3 doesn’t support every media stream format available, but you can play the majority, or figure out how to get real-time transcoding working on the servers hint, hint.
For the $100US or $200au (since everything in Oz is 2x the price), I wouldn’t hesitate to get the PS3 again.
Don’t forget the PS3 bluray remote It’s cheap & makes life easy for you