This one looks good - I expect the presenter is rather good ;)
MSDN Webcast: Windows Vista Sync Center for Windows Mobile Developers – Mon, 11/27, 1:00 PM PT
Join Dr. Neil Roodyn as he introduces you to the Windows Vista Sync Center, a centralized location designed to provide a consistent user experience for all synchronization activities. Dr. Neil will illustrate how applications designed for Windows Mobile that either retrieve data from the desktop computer or send data to a desktop computer utilize Sync Center by providing a Sync Center handler.
This webcast should be interesting also, I am not doing this one (at least no one has told me I am!). I presented a session on SideShow at DevConnections. It is an awesome new technology so try to get to this one also.
MSDN Webcast: Creating Gadgets for Windows SideShow in Windows Vista – Tues, 11/28, 10:00 AM PT
Learn about Windows SideShow, a new technology that provides users of the Windows Vista operating system with quick access to data — even when their computers are turned off. In this webcast, we provide you with an overview of the Windows SideShow technology and show you how to create a gadget for Windows SideShow.
Remember these are USA pacific times
Update:The SideShow webcast is being delivered by Dan Polivy. I am not sure what Dan's official title is but having worked with him (on and off) over the last 18 months I would call him one of the senior architects behind the SideShow technology. Apart from being a great guy he knows more about SideShow than nearly anyone else. Looking forward to catching this webcast myself.