Apple has finally publicly (well, semi-publicly) released a detailed account of its "App Store Review Guidelines." It comes complete with an apologia, too:

Lastly, we love this stuff too, and honor what you do. We're really trying our best to create the best platform in the world for you to express your talents and make a living too. If it sounds like we're control freaks, well, maybe it's because we're so committed to our users and making sure they have a quality experience with our products. Just like almost all of you are too.

Almost all. In a separate press release, they also say:

[W]e are relaxing all restrictions on the development tools used to create iOS apps, as long as the resulting apps do not download any code. This should give developers the flexibility they want, while preserving the security we need.

It's too early to tell what this might mean for Flash on the iPhone and iPad.

You can view the guidelines in the Apple Developer Center if you've got access, otherwise there are some sites that are making it available as a PDF, and it's also on Scribd.