Still no news on when a version of Team Foundation Server (TFS) will be available supporting a single tier installation on the 64-bit processor platform. Word from a trusted Microsoft source is that it’s in the works, but no defined timeline..
It’s worth noting that an x64 platform can be used for half of the dual installation setup, when the single tier option is available, I’ll put up a post and more information.
In the meantime, you can still enjoy Sharepoint 64 and the goodness of BizTalk 2006 on the x64 as well.