I believe it was the NDA that was preventing publishers from releasing iPhone native application development books. Since the NDA has been lifted to allow peop

I believe it was the NDA that was preventing publishers from releasing iPhone native application development books. Since the NDA has been lifted to allow people to openly share iPhone development knowledge (only for APIs that have been released in public iPhone updates), that should allow everyone from book and magazine publishers to bloggers and tech conferences to share such information.