The current stable release of TurboGears, 0.8.9, is in widespread use. Many people are now opting to run with the TurboGears 1.0 releases which are in alpha. There is a tremendous number of new features and fixes. The primary shortcoming of TurboGears 1.0 is documentation. The TurboGears 1.0 API is stable. At this point, we're just doing docs, fixes and minor refinements.