Re: The B got a memory memory in a previous rev @MAge
Actually, the SoC in the Raspi was designed to go in to mobile phones as a media processor (and other stuff). The GPU was specifically designed for H264 decode at 1080p30, encode for camera at the same speed. It has fast 3D and 2D graphics for running games. The ARM itself was added as an bolt on goody.
And the EXACT SAME SOC was used in the Roku2 - which as I am sure you are aware is a media box.
So it's media credentials are actually really quite good. The ARM is a bit weak for real speedy UI stuff, but we use it at home to stream stuff wirelessly from the PVR and NAS, and also use one in a motorhome as a wireless AP so the sprogs can stream stuff to their tablets on the move. Works fine with XBMC.
I do tend to overclock to 900Mhz (simple config change)which does make an appreciable difference.