Wow, the video on giveabrief.com is too funny!

I really like the idea of mocking up via more of a scripting language, especially since it's exportable to a real project in Xcode. As a developer, clicking that many times to build a mockup still seems a bit dreadful to me.

Edit: I believe all the apps mentioned here export to Xcode, just specifying a preference for typing vs clicking :)