Tim

Some of the windows like obstruction/airspace have a close button (red x), some like 'what is here' need a simple tap elsewhere on the screen to close & some like 'radio' or PLOG needs to be closed by androids hardware back button. What do you think of giving them all the same kind of behavior. At least get rid of the android back button usage, cause some devices like my T-320 have an extra back button, others like my Asus HD7 the button is part of the screen & usually tiny. What do you think about giving all pop up  windows an defined red x button & disableing the use of the android hardware button at all?

best regards

-mike

p.s.   In the heat of the moment I experienced it more then one time exiting SD by error, hiting the back button one time to much & confirm then by accident.....

Unfortunately, in that case, you have your hardware vendor (or their software modifications) to blame. The ability to tap outside a modal window to dismiss it is a standard part of most Android releases (I suspect it cleverly triggers an effective Back button press). I can't think of anything we can do to help, as I don't think such taps are even delivered to us. It's a standard operating system thing.