It had been on my list for a long time so I finally got around to it, certainly now that Visual Studio "11" has that great diff tool built in :-) So you will now get the latest installed Visual Studio's diff tool out of the box, or you can also customize your diff tool in the TeamProjectManager.exe.config file if you want a completely different one.
This is available (with a few other minor tweaks to the compare engine) in the latest version (v1.2.4450).
Enjoy! And looking forward to the blog post :-)