Sorry to nit-pick, to my knowledge point #3 isn't entirely true. Google doesn't get a cut from the app sales (at least to my knowledge). I thought it all went to the carriers <a href="http://en.wikipedia.org/wiki/Android_Market#Priced_applications" rel="nofollow">http://en.wikipedia.org/wiki/Android_Market#Priced_applicati...</a> (sorry, don't know how to make that clickable).