[m4x]

How does it make a lot of sense? If Apple had a tool that was better than Xcode, why would they hide it from the public? They have proven themselves to be quite motivated to provide developers with good tools and frankly I find the idea that they keep a better tool hidden away ridiculous.

[feelix]

thought_alarm got it right. The experienced developers probably use open source editors / debuggers, unsuitable for the masses. Not an Apple-only tool, but still not XCode.