Hi Bill,
Our contractor removed Public Folders from our new install of Exchange 2007 (a green-fields install), and suddenly we could book meetings in rooms that were already booked! Instead of being stopped when the users clicked "Send" on their meeting request, the invitations would go out, and then the room would decline the meeting. The user would then have to reschedule!
Reactivating Public Folders brough back the "this resource is already booked" message when the users hit "Send".
If Public Folders are deprecated, shouldn't this functionality have stayed when we turned 'em off?
Yours in Confusion,
Matt
ps. Exchange/Outlook is still light-years beyond our previous Domino/Notes system! :)