Here is a cool video (~5megs) of an Xbox 360 running as an extender for Vista MCE. It also works very well as an extender for MCE 2005 as I have a buddy doing that now.
For those that don't know, an extender is something Microsoft came up with for their Media Center Edition product that connects to your TV/AVR, then interfaces over the network (wired or wireless) to your computer that is running MCE.
This feature alone has me very interested in getting a 360. The org Xbox was also an extender but the 360 is a generation two extender, can do a few more things and does it better than the org Xbox.
