Garmin's new portable GPS unit provides realtime weather reporting via XM satellite radio in a sub-$1000 package. The GPSMAP 376C overlays weather data such as forecasts, storm cells, wind speed, surface temperature and about a dozen other parameters directly on the display itself in realtime. The XM connection also feeds audio to the unit, allowing users to subscribe to XM's 150-odd programming channels. An onboard line out jack serves to hook the unit into your car stereo to feed both music and navigational voice commands through your vehicle's audio system. The unit's got a 3.8-inch, 480 x 430 pixel TFT with adjustable LED backlight, and will be available with an optional car mounting and accessory kit for an additional $250, all of which should be available this August.