Public Documentation

Great place to start learning up on IBCM, is the ConfigMgr Documentation Library

Carol Bailey @ Microsoft has written a lot of helpful stuff on IBCM, here are two articles (pointed out by Rod Trent, thanks!)

Introduction to Internet-based Client Management in Configuration Manager 2007

Now Is The Time – To Brush-Up On Your PKI

Very handy article from the Documentation Library on how to setup the required Certificates to support Native Mode

Step-By-Step Example Deployment of the PKI Certificates Required for Configuration Manager Native Mode