I've not had too much luck trying to debug my android device (nexus 7) over usb. Most articles/solutions I come across are to do with a wifi connection, that isn't an available option though. I read the following:
http://help.adobe.com/en_US/air/build/WS901d38e593cd1bac7b2281cc12cd6b ced97-8000.html
Using FlashDevelop and developing with Starling/Feathers with AIR 3.8, the default for FlashDevelop is "-connect [ip]" where that'd work for a wifi debug setup. I tried -listen instead of -connect but had no luck, the app itself wouldn't load, I get the blank screen(dark gradient) that is visible before the air runtime is loaded and runs the app. I then tried to use -connect with logcat and when filtered get two lines then nothing, taking filtering off and there is alot of information, many errors being reported, though without logcat the app will run fine.
The port number that is stated in those docs I've found stated elsewhere on the web as a different number that is the default so I have no idea which one is the current. Have tried the commands without providing a port number and still the app fails to load, it seems USB debugging on android is impossible?