Hi Adam, this is a fascinating post, thanks for writing it! I'm Jacob, of PressureNet, and in fact Dark Sky is the reason I'm still building weather software! You beat me to consumer-focused radar postprocessing (I was working on this using McGill's radar data in 2010, and stopped when you launched) and you did a really good job - such a good job I took a look around and started collecting barometric pressure data in a new attempt at making the best hyperlocal weather forecast! You and your team are inspiring. :)

I'd be thrilled to talk about your data API and forecast tech, especially if you're considering working with phone sensors to improve your forecast models. I'm jacob@cumulonimbus.ca, have a look at http://pressurenet.io if you're interested.

Thanks for building great products and writing great posts!