Treadwall

The Treadwall ($TBA) is exactly what it sounds like — a treadmill for wall climbing. The standalone device offers auto-stop technology for self-paced climbing, adjustable angles and holds to diversify the experience, a Polar heart-rate monitor, and built-in safety — since you're never more than a few feet from the floor, you simply hop off when you're finished. American Gladiators, here we come. [Thanks, Jeff]