Since Windows 8 has massive amounts of DRM built-in, why not just set a spec for xbox.next branded OEM provided hardware? Microsoft does this with phones and used to do it with tabets. In the end, what is different about xbox verses something like a Windows 8 RT device? Things that might go on the certification might look like this:
* Boots under 10 seconds * Conforms to DX11 * Scores at level X for benchmark Y * No crapware allowed * Is no louder than Z decibles, under stress * Supports controller spec * Has at least one HDMI out
and a cable card slot !!!!!
then no need for windows media center on the pc.
for folks who do not know this most cable companies charge about 15 to 20 USD a month for an HD PVR set top box.
a cable card is only about 3-4 USD a month.
the XBOX with PVR functions and a cable card can replace the set top box and you save around 10-14 USD a month on your cable bill.
look at what that means after 2-3 years of savings !!
other than the card slot the only other thing MS needs to do is put the WMC channel guide features into the XBOX system. not much work and it would make the new XBOX way better for folks who want to do that.