Finally, RSAT for Windows is released and now you can remotely administrate your domain and servers from Windows 7.
Link: http://www.microsoft.com/downloads/details.aspx?FamilyID=f6c62797-791c-48e3-b754-c7c0a09f32f3
The procedure is the same as in Vista, download and install the update
Enter Start button and write feature and start Turn Windows features on or off
Select everything you want to install below Remote Server Administration Tools and press OK
Now look in in Administrative Tools
Also worth mention is the Step by Step guide for Demonstrate DirectAccess in a Test Lab: