The brains that brought you NUnit have decided to create a new and improved testing framework dubbed xUnit.net. Their goal is to learn from the lessons of NUnit, thus creating a more usable framework (for example, they realized you don’t need to attribute a class if you’ve used an attribute on a method!).

Their website offers a nice comparison of xUnit.net versus NUnit, MBUnit, and MSTest that’s worth studying.

The question still remains though: will you drop NUnit, which is arguably the de-facto testing framework for the .NET platform to use xUnit.net?