Microsoft has won several disputes relating to Xbox domains, one of which includes Xbox 8.
Disputes filed in May with the National Arbitration Forum has been won by the corporation, which was owned by Chinese resident Cheng Juan. Microsoft now owns the following domains:
Inevitably, speculation points towards Xbox 8 being the name of the next-gen Xbox. The Xbox 360's successor has also been rumored to have some sort of integration of Microsoft's upcoming Windows 8 operating system.