This version is back after a falling out with the developers of Raspmbc (it all seems sorted now) and features a small footprint (fits on a 2GB card), has a smooth UI, CEC support and works with AirPlay.
Version 0.8.1 beta includes a new alpha 7 version of XBMC and has increased GUI performance.
This update includes an updated version of XBMC (alpha 7). It fixes a lot of bugs and increase the GUI perofrmance dramatically (e.g. XBian 0.8@1920×1080 30fps, XBian 0.8.1@1920×1080 50-55fps). This update also includes PVR.
You can get the details and the download from Xbian.org
Over the next couple of weeks I am going to do a XBMC on the Raspberry Pi shootout