How does Google Manage Mac desktops

Redmonk has published an interview on how Google manages Mac desktops. Later in the interview it mentions that Linux desktops will be managed through the same tool.

People Over Process » Puppet at Google - RedMonk Radio Episode 48

Nigel has been using Puppet to manage “many, many thousands” of Mac desktops used at Google by developers and others. He tells us how he got involved in using Puppet last year during WWDC last year and quickly applied its use to managing Google Mac desktops.