Engadget.com - All right, after many a false sighting and tons of sketchy pics (the Xbox 360 was starting to give the Virgin Mary a run for her money), our sources are confirming that this is really it. My, Xbox 360, how concave you are! We also admire your simple, round nexus. Mmmmmm.
link | Hi-Res photo | Joystiq | Watermarked highres picture | Msn.co.uk
Notice in the photo there is no controllers, that's because it uses WIFI, and also can you see the power button, it has a pretty good resemblence to the ourcoloney.net button.
Also read Xbox 360 Revealed? by teamxbox, link