Canopy promised a whole new world of smartphone control with its Sensus iPhone case in the fall, and we've at last had a chance to gauge how well it works here at CES. If you'll recall, it delivers 10-point touch input across the back and sides that let apps add interaction without blocking the screen -- think of the PlayStation Vita's back touch and you've got the idea. That theoretically sounds great for gamers, but we'd like to see how well it works outside of a dedicated console. In practice, the case isn't much different in dimensions to a standard protective
