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I'm not sure what this says about the relationship between mailing list activity and delivered software;-)

With several hundred applications now available in the iTunes App store, I decided to consider alternate ways of gauging interest in the platform. Using MarkMail, one can quickly scan thousands of mailing lists and restrict the results to those related to software development. Based on the number of posts to (MarkMail) mailing lists, Linux-based alternatives generate considerably more email chatter than the iPhone:"