The January '08 refresh for the Outlook 2007 Auxiliary Reference is now live. In addition to a general scrub over most of the topics, there are some interesting new topics added, such as:
Timezone/rebasing docs: http://msdn2.microsoft.com/en-us/library/bb820976.aspx and http://msdn2.microsoft.com/en-us/library/cc160684.aspx
Protecting open PST files when you crash: http://msdn2.microsoft.com/en-us/library/cc160695.aspx
Rules processing in the wrapped PST: http://msdn2.microsoft.com/en-us/library/bb820947.aspx
Additionally, my update to the wrapped PST has been incorporated.