Team Foundation Server Administration Tool Version 1.4 Has Been Released On CodePlex
Version 1.4 has been released. Build 1.4.90426.1. It really has few user level changes from the 1.4 Final Beta. Some of the reports on the final beta have been pushed into the next release or as of yet unrepeatable from our end.
Ladislau Szomoru and Peter Blomqvist have been working hard on 1.5 that has some significant changes in terms of user experience (it may end being a 2.0, I don't know yet, but they have been referring to it as 1.5. We'll definitely have a major version number change when Team System 2010 is released. What the feature set will need to be will change drastically and the configuration of environments could be much more diverse making it a challenging release for this tool. It may be like starting over.
For a list of all the changes since Version 1.3 follow this link. The big change from V1.3 and V1.4 is the proper support of Reporting Service for SQL Server 2008. We had that in 1.4 Beta 1 but it is still the most significant of a number of changes and the entire reason that we got moving on a 1.4 version.