First off understand that while it will be available on automatic updates, everyone will still have to approve the EULA before it's installed. So it's not just going to show up on your desktop one day.
Next, load it up on one workstation… see what websites and line of business apps that are affected.
Make sure your key applications work. So far on my tests everything is working just fine.
But don't panic… and ensure you test.
This keeps you one step ahead of everyone else. [E-Bitz – SBS MVP the Official Blog of the SBS “Diva”]