After applying the update, I noticed that the new tools did not appear in my Administrative Tools folder, but the help file was there only. I tried to add the snap in via the MMC, but they did not appear as if they were registered in the system.
Fortunately I did remember reading that in the beta, you had to enable the Windows Feature for them to be available.
So just a simple jaunt into Control Panel -> Programs and Features -> Turn Windows features on or off was all it took to make them available.
Now all the of the installed RSAT tools are available for use!
Update: These steps should also be similar on Windows 7 as well.

[...] computer.x64 Editionx86 Edition After you download and install the update, please remember to enable the RSAT tools so that you can use them.For those curious what tools are included, here is the list from the Help [...]