Looking for Team Foundation Server source control converters?

Here are a couple, for Visual SourceSafe, and ClearQuest:

VSS:

http://msdn2.microsoft.com/en-us/library/ms181246(en-us,vs.80).aspx

CQ:

http://msdn2.microsoft.com/library/ms181248(en-us,vs.80).aspx

The team responsible for these converters is looking for real-world testing, so if you use them (please back up first, after all, this is still beta stuff!), let me know what your experience is, and I'll be happy to pass the information along to the folks responsible.