I'm not sure if you are too late (says something about being available through June 2009) but try the following link.

http://technet.microsoft.com/en-us/evalcenter/dd353205.aspx

EDIT:  Okay so now you have two links

Since this is in the WindowBlinds forum I think the OP may be asking about WindowBlinds 7 instead of Windows 7.

There is a beta for it that is accessible to Object Desktop subscribers in Impulse. Be sure to have show Pre-release versions checked in your preferences for it to show up. Click the orb at the top left in the Impulse window to access your preferences.