Greatest. Invention. Ever. A Virginia Tech university graduate and a couple of chums have come up with what one YouTube commenter rates as the "Greatest. Invention. Ever" – an iPhone-controlled beer-dispensing cannon. Ryan Rusnak, 25, first rigged up a bog-standard refrigerated beer vending machine to dispense refreshment at the touch of his Jesus Phone. Dissatisfied with having to physically retrieve the can from the machine's tray, he and Graham Phero decided it would be "awesome" if the device could fire ale directly to the customer using compressed air.....read more from The Register (January 13, 2011)