Ben Curtis recently released Tesly Jr., is a great web service that runs through your Rails tests, formats the output, displays them, and allows you to share them with other people. It installs as a plugin in your Rails application. Whenever you run
rake to test your app, it uploads the results automatically to the Tesly Jr. server.
Using Tesly Jr., its very easy to keep your development team up to date with the status of the project. Combine this with runing tests on deploy with Capistrano (via Jamis Buck) and you have a that much better integration of testing into your development and release cycle.
Tesly Jr. is free when using the hosted service, and available for just $24 if you want your own copy to run on your own systems.