I just have a plain ol LG phone! The wife got the Droid and we are on Verizon. We switched to Verizon years ago because it had the best coverage when we were out wheeling and camping.
My bad, your original post sounded like you had an iPhone. Guess that was a bad assumption on my part, you were just making us aware of an iPhone app.
Plenty of similar apps on other platforms, and better.