My previous post described building an Xcode project template with GHUnit and OCMock support built-in.
Unfortunately, the project template structure for Xcode 4 is significantly different, and even though I am working almost exclusively in Xcode 4 now, I have not taken the time to create a new version of the template.
So for now, I went a little old school and created and empty base project and then just copy the directory and rename things to start a new project.
This zip file is roughly the same contents as what the project template creates in Xcode 3, and I just verified that I can open it up cleanly, build, and run both test targets in Xcode 4. I hope it helps.