Sphere of virtual reality at GDC 2010

When I watched “Lawnmower” I always wanted to try to immerse myself in virtual reality in a ball like the main character, and at the last GDC 2010 in San Francisco they brought almost such a thing

It costs more than $ 30,000, height 3 meters. In the hands of the hero of the plot a dummy gun, and it is necessary to kill with head movements, but for training the military (for which these things are used now for the most part) use guns with a position sensor. Judging by the reviews, getting there is easy, but when you put on your glasses it is difficult to catch the balance.

I wonder if the future games will immerse us so much?

Here is a short video from GDC 2010 (about the ball before 01:20):