One thing I've been curious about the Xoom is the built-in barometer. I have an interest in weather and I've been trying to think of a use for the barometer on this thing. I know it's there to make GPS initialization faster. I'm sure it can be used as an altimeter, but with the GPS that's a bit redundant. I don't think it can be used as a normal barometer for forecasting the weather since it's a mobile device and you might be going up and down hills that will change the pressure too; Does anyone have any thoughts of other uses for the barometer?