iPhone devs share info to avoid App Store rejection
That's why developers are starting to help each other. There's now a Tumblr-hosted blog that posts app rejection letters from Apple, so the dev community can get a better sense of how these rules are being enforced.
The published feedback on the Application Submission Feedback blog is supposed to act as a necessary replacement for the rules that Apple has either left unclear or failed to state altogether. So far, it deals with tricky problems like 17+ ratings, lite apps and images of iPhones. As the site collects more data from people who have been rejected, it could become essential reading, and a kind of missing manual for the stuff Apple won't say outright.