The Shadow Caddy can function in all weather conditions and moves at a speedy enough clip to keep up with a fast walk. Right now, it's only available as a rental model rather than a full retail product. Trials are being conducted at four golf courses in Melbourne, Australia.

Not only is the cart cheaper than renting a real person to carry your clubs for you, it'll never make snide remarks under its breath about how any idiot would've known to use a nine iron for that shot. [Gizmag]