E3 2012 was too soon for the new Xbox's grand unveiling. Photo: AFP/Robyn Beck
Cloud gaming technology enables users to play high-spec games on standard equipment, be those desktop computers, laptops, tablets, smartphones, and web-enabled TVs.
Fellow cloud gaming firm Gaikai agreed to a $380m buyout from Sony PlayStation in July but, without a lucrative takeover, OnLive's August insolvency and restructure was necessary in order to help it cope with company debts.
The purported Xbox 720 file, discovered in June, also made mention of a pay TV service called Xbox TV, a more accurate Kinect motion sensor, an Xbox 720 around six times as powerful as the 360, and augmented reality glasses.