That sounds neat. I didn't now about the Skymap app. I've stopped browsing apps since my Iphone went through the washer. It goes to show that there are many

That sounds neat. I didn't now about the Skymap app. I've stopped browsing apps since my Iphone went through the washer. It goes to show that there are many ways to achieve the desired goal, so the real issue is not ADS-B systems but freedom vs. safety and how much are we will to give of one to get the other.