He is still hoping to find a company that will invest in his ideas, as he has gone about as far as he can without more money and more advanced VR animation talent to work on it. On his website you can download and view what it looks like your computer monitor WITHOUT the Oculus Rift device. But until you see it with the device in actual Virtual Reality you can't imagine just how "real" it is.
I spent an hour one day with the Oculus Rift device, immersed in a an underwater scuba experience developed by one of his colleagues. The sound is there and the bubbles from my "air tank" were so "real" that I kept turning away from them to clear vision of what was in front of me. When a shark swam past, heart rate sped up and there was a very "real" reaction to back away behind a reef. It was so amazing that I actually got a bit sea-sick from the simulated motion of the water and could not stand up while doing it because my body felt like it was floating in the water.
Presently the Rift's technology requires controlling most motions with a gaming controller, but they are working on more realistic controls. Already they have a built in GPS that causes turning of your head to actually look to the side and even behind you. Imagine that if you were watching a 3D movie and you could turn around and see what is behind you within the movie.... that experience puts you "inside" the movie and it is happening all around you. They are working on adding hand, arm and leg motions for future versions so we will be able to walk through the simulations, touching things with our hands. At that point then the medical training mentioned in the posted article will be very possible and "real".
Here is my son's website if you are interested in seeing his projects..... www.projecttimetravel.com
Fantastic work. Good luck to your son. Must be very exciting as he ventures forward.