So today Apple dropped the iPhone NDA for released applications, saying in part:
…the NDA has created too much of a burden on developers, authors and others interested in helping further the iPhone’s success, so we are dropping it for released software.
Sure, it only applies to released items, but having unreleased apps/features under NDA is not at all unusual.
Bottom line is the primary NDA complaint was that even released apps/features were covered, which prevented the publication or use of books, tutorials, presentations, classes, discussions groups, etc. that could help spread the word. It’s that restriction that’s been lifted. This is very good news, indeed.