Finally it is released! If you are using Windows Home Server, please take a look at WHS team’s blog http://blogs.technet.com/homeserver/archive/2008/07/21/power-pack-1-come-and-get-it.aspx.
Power Pack 1 is available from http://www.microsoft.com/downloads/details.aspx?FamilyID=1A6AEF46-DB57-401F-814F-6EFA26E7A1E8&displaylang=en.
I love this product, more than once, backup on my WHS saved me. WHS system backup is also very good to rollback my system. I created a manual backup after fresh install for all of my machines, and after my machines are fully configured.
A friend of mine was moving, and he did not have a laptop. I loaned him my laptop, gave him the laptop in a clean state after restoring the laptop from the fully-configured backup. After he returned the laptop to me, I restored the laptop from the backup that I made before I gave him the laptop. He could install all the applications that he wanted, and it won’t matter to me.