Nike launched its line of “smart” sports shoes with multiple Bluetooth Smart sensors in the sole last June. The Nike Hyperdunk+, Lebron X+ basketball shoe, LunarTR1+ and Lunar Hyperworkout+ shoes each have four pressure sensors that gather information from different parts of the foot and send it via Bluetooth to the Nike+ Training app (iOS only). The app tracks vertical jump, quickness, calories, "NikeFuel" points, and other performance data. The shoes cost a hefty $250, but it appears Nike has quietly dropped the line. If you’re committed to proving geeks can jump with hard data, you can still score a pair on eBay.