My biggest insight from the comments was that I had generalized too broadly about the mobile software world. Several mobile developers wrote in to say that they're doing just fine, thank you. Most of them seem to be either in enterprise mobile software, or doing contract development for major companies that have decided they want a mobile presence. In both cases, they have ways to get around the distribution logjam that I see as the biggest barrier to success in mobile software. I wasn't thinking about either of those developer categories when I wrote the post.
Anyway, I really appreciate all the comments. I learn a lot from the folks who post feedback, and I hope the comments are useful for you as well.
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