[Veratyr]

Interestingly, "aviation geeks out there supplying the data" are how the FlightAware API you mention gets much of its data:

https://flightaware.com/adsb/coverage#data-coverage

https://flightaware.com/adsb/piaware/

With a bit of promotion your idea could work and in fact... It does!

http://www.adsbexchange.com/

http://global.adsbexchange.com/VirtualRadar/desktop.html

Also, ADS-B rollout isn't entirely necessary. It's possible to triangulate places with the older Mode-S transponder through MLAT as long as you have enough receivers in the area.

[yitchelle]

Thanks for sharing this. This looks like a really good alternative to flightaware, if the data is accurate.