I'm the dev of pressureNET. We're building a network of barometers (currently about 500 active users) that are inside Android devices, currently the Xoom and so

I'm the dev of pressureNET. We're building a network of barometers (currently about 500 active users) that are inside Android devices, currently the Xoom and soon the Galaxy Nexus. Using this information going into the future, we're hoping to improve short-term weather prediction and forecasting, on the 1-hour to 1-day scale. We intend to correlate our data will local radar data to provide more accurate predictions. You can read more (and see our source code, of course) on our blog at cumulonimbus.ca. New in version 1.2 is the ability for users to see graphs of pressure readings over time, our first step at putting the data in context to prepare for future work on predictions. Also, for the HN crowd, I'll add that Cumulonimbus Software (that's us) is currently writing a business plan and looking for funding. If you'd like to get in touch with us, email us at software@cumulonimbus.ca.