Interestingly, it is on OS/X that people are still working on the GUI builder idea, not just for the interface but to entirely replace (or automatically write)

Interestingly, it is on OS/X that people are still working on the GUI builder idea, not just for the interface but to entirely replace (or automatically write) the code for an app. Google for Marten IDE to see what I mean. It's a free download but warning... Prograph is a deep subject and if you are mainly an iOS app developer it may be too much, too soon.