QUOTE(skywardsword @ Feb 15 2013, 09:20 PM)
btw if you guys are going to update from rc5 raspbmc to final raspbmc...
be warned. Subtitles dont work on a lot of my files. And it causes problems when i fast forward skip. Patch is coming up but I dont think its up yet.
I did not figure out how to downgrade... so it is kind of problematic over the vacation and I ask my cousins over to watch hunterXhunter with no subs...

I recently upgraded my Xbian to Alpha 4.0 and it is awesome! 1080p high bitrate videos that was very jerky last time is now smooth. I suspect no less with the final raspbmc. I actually tried it but ran into problems getting the wifi to connect, so went back to Xbian since I was more familiar with it.
if anyone is having problem getting their wifi working on Xbian:
1. edit /etc/network/interfaces
2. look for "wireless-power
off" and change it to "wireless-power
on"
assuming you have the other network configurations done properlly this should get your wifi working on the Pi.