We do this with our iPhone games, like Raptor Copter (hunt velicoraptors in your Chinook helicopter!). It's part of our achievements/leaderboards framework, so

We do this with our iPhone games, like Raptor Copter (hunt velicoraptors in your Chinook helicopter!). It's part of our achievements/leaderboards framework, so we kept it in, but it also lets us compare the total number of sales to total iPhone device ids in our database. Piracy isn't a big problem, and we generally don't care anyway, but the data is available. We had the scrolling LED sign in our office rattle off sales in real-time, which was fun for awhile. As a quick piracy note, you can also detect pirated iPhone apps this way: http://thwart-ipa-cracks.blogspot.com/2008/11/detection.html http://thwart-ipa-cracks.blogspot.com/2008/11/detection.html Back to iFart--I can't imagine many people would pirate a farting $0.99 app, versus a more expensive, more popular game. Maybe 1% or less?