Driving a motorboat can be scary if you're a newcomer. Despite all that power, you're still at the mercy of the wind and waves -- it can be hard to keep your boat steady when you're docking or waiting for a bridge. Mercury Marine may just save your hide (and your hull), however. It just showed off the results of its smarter Verado outboard motors, which use Skyhook's GPS technology to keep your boat steady and on course. The effect, as you'll see below, is almost eerie: a craft that would drift on its own suddenly stays put thanks to the pivoting engines.