Smart pilots won't fly without accurate, up-to-date weather information. Garmin brings it straight into their airplanes with the GPSMap 396, the first portable navigation device that receives real-time XM WX Satellite Weather radar and satellite images, forecasts, and wind data. $2,700
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.