We've often wondered how our miniature camera switches between landscape and portrait display in review mode. How does it know? Accelerometers. The technology that makes these gizmos work is evidently getting cheaper, and will soon show up in laptops and iPhones the same way it already has in Wii controllers. That recalcitrant laptop, for instance, could sense that it was flying through the air like a frisbee and clamp down the hard drive before impact. While making cute characters toss Wii gutter balls down a TV bowling alley is a fine application of accelerometer technology, we think tilt-compensating suspension in an affordable car would be more entertaining.