VirtualBox v2.1.2
The good news is that just released update to VirtualBox v2.1.2 fixes a couple of the issues that I had installing the Windows 7 beta on my Mac.
In 2.1.2 (released this morning) there's a specific Windows 7 entry in the dropdown when you create a new machine, i.e. where you chose Vista. And the 2.1.2 guest additions work without needing compatibility mode.
Hooray! (I guess I was a day early and a dollar short -- jumped the gun installing the beta on VirtualBox)
