Xbox 8, or perhaps Xbox ∞ (Xbox Infinity) could be the name of the successor to Xbox 360.
The speculation has arisen after Fusible reported that Microsoft had acquired two URLs – Xbox8.us and Xbox8.org.
Not only has it acquired them, but it fought to do so, winning two disputes with a Chinese resident who had already registered the pair. Microsoft has not, however, sought action against the Chinese owner of Xbox8.com.
Of course, with Windows 8 on the horizon, Xbox 8 may be nothing other than some sort of cross-compatibility. Or Microsoft could simply be protecting its IP.
Internal Microsoft documents have referred to the in-development system as both Xbox 720 and Durango. Xbox Loop has also been widely touted as a possible moniker.
Microsoft has also acquired XboxPhone.com, XboxTablet.com, XboxLiveTV.com and XboxCompanion.com. It is currently disputing the ownership of Xboxliverewards.com, Xboxsports.com, Xboxsmartglass.com and Xboxmusic.com.