[mrbrandonking]

ReSharper is an add-on component for Visual Studio that is (IMO) the best refactoring tool available for any IDE. ReSharper includes an NUnit-based test runner, too.

JetBrains is the company that makes ReSharper. I also use AppCode (their alternative to Xcode) in a way that's similar to how I use ReSharper. I do most of my iOS development in Xcode but load the project in AppCode before committing so I can take advantage of its superior code inspection and refactorings.