Cheng Juan of China had snapped up some Xbox-related domain names like Xbox8.org and xbox8.us, as well as crappier ones like xboxcompanion.com, xboxlivetv.com, xboxphone.com, and xboxtablet.com. Microsoft wanted them back, of course, and has now won them back through the National Arbitration Forum.
It's obvious why they would want some of those domains, but what about the Xbox 8 stuff? As we've seen with Xbox Music and other Microsoft products, they've begun to jam the Xbox brand in everywhere they can, including into Windows 8. It's probably nothing, this Xbox 8 stuff. But, as Joystiq said, wouldn't it be weird if some squatter was onto something with the name?
[Lovely concept system image from here.]