According to reports and photos from several Reddit users
, Valve Software brought a newer iteration of its prototyping virtual reality head-mounted display to a local VR meetup in Boston last weekend, demonstrating a device with even better specs and capabilities to the one seen at the Steam Dev Days event a few months ago. (thanks The Verge
Event attendees describe some of the newer device's improvements that include a new motion tracking system with an external camera and IR dots on the head-mount casing -- similar to Oculus' Crystal Cove design -- and two OLED screens for a total resolution of 2160x1280.
Regarding the software demos shown, the most interesting of those described was a DotA 2 spectator experience, where the virtual reality user could reportedly "see the entire game arena sitting on a table in front of you and can bend down to inspect any piece of the action".
Valve has previously expressed that the company has no plans to market a commercial virtual reality device, and is known to have sharing research with (the now Facebook owned) Oculus VR. So it seems likely that Valve's continuing experiments are more about preparing its own games, the Source engine, Steam and SteamOS to best take advantage of VR when it finally arrives.