It's also quite silly they have the apps wrapped up with DRM when Steve Jobs seems keen on avoiding DRM in other areas - http://www.apple.com/hotnews/thoughtsonmusic/ - but, hey, this is Apple, and it's a closed platform.

In any case, while the SDK is under NDA, it does mention that you can discuss it with other developers within the same program.. it's just discussion with the outside world that's the problem.