For those of you that were given a copy of Windows 7 build 6801, there are some features that can be unlocked.
It has been found that in this demo, the features were locked out for users that were not Microsoft staff etc. But it seems that Rafael from WithinWindows has found a way to enable the locked taskbar features.
I don’t have a copy of Windows 7 to test this out, but the following site will give you the details of what you need to do. It sounds pretty cool, so let us know how it turns out.