How to speed up TDD flow with iOS and Objective-C/Xcode

Question

Have been searching for experiences on TDD with Objective-C and iOS development.
Previous post about \"string calculator\"-kata in Objective-C was useful (thanks).

Answer 1

I found the following screencast pretty useful http://vimeo.com/9394596 to get started.

Answer 2

Perhaps this helps: http://pragprog.com/magazines/2010-07/tdd-on-iphone-diy