Created by Minnesota inventor Ilya Kaganovich, the total weight of both shoes is 16 pounds, and they have a range of five to seven miles on a charge (as long as you're not going uphill). The 4-inch wheels are supposed to give you high-speed stability, but it still looks like that control cable with its hand brake might have quite a learning curve. Wear knee pads and a helmet, and make sure your insurance is all paid up. Looks like fun, though. There's no word on pricing or availability just yet. [iShoes]