https://marco.org/2009/08/27/gigaom-how-big-is-the-apple-iphone-app-economy
GigaOM: How Big Is the Apple iPhone App Economy? The Answer Might Surprise You (via John Gruber)
This is part of the reason why there’s very little incentive for iPhone developers to port their apps to Android: I’d need to spend a similar amount of development time for a market that’s very tiny (and that I don’t personally use, which is more fatal). I imagine the numbers for webOS in a year will be similarly tiny relative to the iPhone OS platform.