Acer's Windows VR headset shows promise, needs polish

Microsoft unveiled the first Windows Mixed Reality headset Wednesday, and an early look at a prototype version of the hardware shows promise, along with room for improvement.The Acer Mixed Reality Development Edition headset will start rolling out to developers later this month, but Microsoft offered a demo of a pre-release prototype during the Game Developers Conference this week.I wasn't allowed to photograph the device, but it looked like an almost entirely black and less branded version of t