BUT got my first BSODs ever with Windows 7 thanks to this little bitty. 8(
I assume it's a conflict between the beta and some of the other Stardock customizations I run. Here's the lowdown:
Select custom animation effects for anything but default, or the Start Menu, etc. Move the item in question. BSOD.
I'm running Windowblinds (latest version) with everything transparent, a different animated Deskscape on each of three monitors, Fences semi-transparent on the desktop, ObjectDock with at least one dock on each monitor, and Rainmeter with transparencies.
All of the items above play wonderfully together, but add this beta to the mix...crasharooski. Note that momentum and some other windowFX seem to work fine.
The only common thread to the crashes is the animation option, which would cause the shape of windows/start menu to change.
The bug is repeatable without fail on my machine (Windows 7 x64 btw).