See the compiler page to download.

XCode

Gary Meyer has come up with an "insanely great hack" to steal a phrase that allows us to get access to the Ada Specs required to write Carbon Gui applications and tie it to Apples documentation. This hack will allow you to select a carbon identifier in your Project Builder text editor and lookup the Ada specification for the routine in the Carbon Ada Bindings, and then display the Project Builder help file that documents the procedure! He has provided an explination of how to create a framework that you can add to your projects to allow this, and a nice script to create the framework. Note that the Bindings framework should not be used to compile against, its only used in the project to lookup definitions. Gary will take questions on this over the mailing list.

Download Gary's Description

Download Gary's Script to Create Framework