I don't know about that, I can't see Apple wanting NFC to succeed. If they do they will need to already have some killer apps that use it, and have big deals in place with stores. Apple is incredibly secretive, but that'd be hard to prevent from getting out.
No, square wheel is saying if apple were adding NFC to the iPhone 5, they'd have major apps prepared to use it, and be partnering with retail stores. He or she suggests that those are so big that despite Apple's secrecy, stories would come out. But because they haven't, Apple is unlikely to be adding NFC (Just paraphrasing--no opinion of my own here)
Yes, that's exactly what I meant. To do anything big with NFC would require cooperation with a lot of parties, and that would be hard to keep a secret.