Good news: a private company has developed a manned hoverbike you might have a chance of owning one day, instead of something destined for the military or the corporate crowd. Only... you may want to take a pass on this one. Hoversurf has teased an electric quadcopter bike that offers both automated and manual control. It's marketed as safe thanks to "state of the art flight controllers" that keep checks on parameters like altitude and speed, and those are no doubt true. But, well, look at it -- you're one jolt away from losing your legs to those unprotected blades. And did we mention how easy it would be to fall off with that unrestrained, motorcycle-style seating?