The Motorola Zoom has a barometer and now so does the Galaxy Nexus it seems. I hear you asking what is it and what’s it for?
Well, when you think it’s going to rain, just hold your Galaxy Nexus out your window to check the barometric pressure. I know i don’t know too much myself, but Google you see put Barometer support in with Android 2.3 Gingerbread, The barometer placed within the Galaxy Nexus should allow for more accurate weather reports on your Smartphone and daily Android experience.
So, the most obvious reason for a barometer would be to provide accurate, on-location weather data. The developers still have to make these apps and use the features of course though. The possibilities could be in other places as well with developers taking the barometer and using it for other purposes maybe.
Any answers on the Barometer people? Could it help Android and what could be done