Thanks to Paul for following up to the comments thread.

The Volume Activation Management Tool 1.1 is now available for download from Microsoft downloads:

http://www.microsoft.com/downloads/details.aspx?FamilyID=12044dd8-1b2c-4da4-a530-80f26f0f9a99&DisplayLang=en

This 1.1 version of the tool will allow you to manage Server 2008 Multiple Activation Keys (MAK) to view the activation status of remote machines and push keys to them, trigger their activation, or even proxy the push/pull of installation/configuration ids to activate nodes that do not have routes to Microsoft.com.