Microsoft's rumored Fortazela conceptMicrosoft will reveal its long-rumored Xbox virtual reality headset device during the company's E3 2015 briefing next summer, according to a new Digitimes report that cites "upstream supply chain" sources. The summer tradeshow is scheduled for June 16-18, 2015.The site's sources went on to say that development on the Xbox VR headset, which will presumably work with the Xbox One, will be handled by the same team that runs Microsoft's Surface tablet line.