I didn't feel like Android Guitar got to the meat of the song quick enough. Thirty seconds is a bit too long... You probably only got that much time to make your whole point, considering A&R guys have to rummage through thousands of CD's...
My advice is to only send your 3 absolute best songs, and make the first song a quick attention getter. If they want to hear more songs, they will ask you...
Good luck, break a string! (Leg) (or whatever...)
So. If you throw a cat out of a car window, is it considered "kitty litter"?