When I was younger, I remember playing with a virtual reality system which at the time I thought was pretty amazing. Though many people thought that VR was going to be the next big thing, it never really took off and eventually fell to the wayside.
But now it looks like there may be new interest in the technology. Next month, Canon will start selling it's mixed reality system. Surprisingly, the technology doesn't look all that different than the gaming systems from my youth. Though I am enthusiastic about the renewed interest, I am a little bit skeptical as to whether or not it will take off.