The Currie Electro - Drive
Does anyone have or know about the The Currie Electro - Drive Kit which the reviews in electricmountainbikes.blogspot.com say allows a quick release rear axle. That's a feature many of us eZip owners would like to have. I can't tell from the pictures how this was accomplished. The layout looks a lot like an eZip but with the spoke drive interface.

Found the answer to my question. http://www.allwebscooters.com/ebike_kit.asp sells this product. Basically the whole motor mount quick releases from the frame taking the spoke drive with it. So now the bike is as was, easy wheel change. Doesn't apply to eZip.