"Add2Outlook for CalendarsTM is an Outlook Com Add-in for Exchange users which auto duplicates and synchronizes Outlook calendar appointments created in a Public (group/global), Private, or a PST calendar (and not marked Private) to another Outlook calendar- Private (mailbox), or PST (within the same folder) and ready to synchronize to a PDA (cradled/wireless) or Smartphone. With Add2Outlook for CalendarsTM, users can have their new Outlook calendar appointments replicate bi-directionally (2-WAYS) and edit appointments 4-ways."This sounds like a great solution for people looking to sync more than their basic Outlook Calendar. More information, including licensing costs are available on the developers
website.