Download xUnit 1.0.3 - Provides ReSharper 4.1 Support
It sounds like the problem of xUnit being tightly coupled to ReSharper may be over. xUnit 1.0.3 recently released offers support for ReSharper 4.1 as well as apparently will allow xUnit to support future releases of ReSharper without requiring a version update.
You can download xUnit here.
ReSharper and xUnit Tutorials:
Tags:
ReSharper,
xUnit