Are you developing a solution using Outlook 2007 beta 2, but frustrated by the lack of available documentation in the developers reference? I've got a deal for you then. We've recently posted updated developer content for the beta 2 release, with a bunch of help topics that didn't make it into the packaged download. You can download and install this update and get the latest and greatest developer content for the beta 2 release, a large portion of which was not included in the box for beta 2.
I really encourage anyone out there looking at developing with Office 2007 beta 2 to download and install this extra content.