If you’re a fan of the Outlook 2007 To-Do Bar, but wish your upcoming appointments and tasks could be shown even when Outlook was minimized, you can do this today with the Outlook Sidebar Gadgets.
One of the new features introduced in Windows Vista is the Windows Sidebar, an application that allows gadgets (small applications that provide quick access to useful information or commands) to be displayed on your desktop or in the Sidebar.
The Sidebar presented a great opportunity for Outlook to surface the same information that is show in the To-Do Bar. Two Outlook gadgets are developed:
1. Outlook 2007 Appointments Gadget
These gadgets can be used independently or together to provide at-a-glance information without the need to bring up Outlook.
More info at Outlook Team Blog