our company is showing a prototype of our video eyewear that plugs into the bottom of the video Ipod, at CES this week (along with our other products)
the biggest problem with watching video on an ipod is the small screen. The prototype we have developed has a pair of 320x240 LCDs (same resolution as the ipod), but it looks like a 42" screen thats 7 feet away - and it gets all its power from the ipod.
we dont have it available for sale yet, but you can get the idea from our current products on our website:
www.icuiti.com