This is a great review of an incredible programming tool. My only complaint so far is that I can no longer use CMD + B to build my project. Appart from that Xcode has been improving in stability and product quality enormously since it's initial version.

Personally I find the editor window on the build results and such quite a nice addition, as those who don't want it can easily hide it. To me, it is nice to be able to check the error locations within the same window.

A recommended upgrade to those using earlier versions.