The Oculus Rift. Virtual Reality head set due for mass retail in 2014 (dev kits for early backers are being sent this Spring/Summer) and will cost 500$ at retail when released:
Info: http://www.neogaf.com/forum/showthread.php?t=507422
Info: http://www.neogaf.com/forum/showthread.php?t=501740
original kickstarter: http://www.kickstarter.com/projects/1523379957/oculus-rift-step-into-the-game
Skyrim has been confirmed to support the Oculis Rift.
Imagine how Skyrim can be transformed if this tech lives up to it's promise (impressions from various tech magazines at CES indicates that it does). Actually entering the world of skyrim through your own living eyes. Gaming will never be the same.