I'm building a dense network of atmosphere sensors using smartphones in order to build a more accurate weather model [1]. Android's APIs allow us to access the raw data, but all of Apple's marketing talks just about "elevation". I'm hoping they give us access to the raw sensor, and not just elevation change.
Humanity ought to have a much better weather forecast than we have now, as we're nearing 1B+ internet-connected barometers. Hopefully Apple's sensors can add to this network!