have you ever seen existing 3D head mounted displays? they are kinda clunky, having the ds mounted on say your hip, it would lighten the load on the goggles. just imagine, the virtual boy you had to sit down and bend over to look into it. old-school VR arcade helmets were humungous. didn't somone pick up the DS screen on their tv? strangeness. not that's i'm implying these things are connected. but on teh interweb i'm right till proven wrong,