Hmmm...It looks like a concept model. If it was a real Xbox 360, the "Ring of Light" power button would light up. And everything looks too plastic, like something from a unpainted model airplane (if you get what I mean). I seriously doubt it would run Halo 2, as of yet, since Microsoft just recently shipped their Beta Dev Kits to developers, and the backwards capability wouldn't be fully ready yet. I think the Halo 2 screen is photoshopped on because there should be a "Press Start to Begin" text on the bottom of the Halo 2 title.
I think the Xbox 360 itself is bogus. It's most likely a hollow model. Same with the controller. I guess someone is looking forward to getting fired by Microsoft.