I cannot believe how cool RIA Services is. I knew it was cool, but I think it does everything I have been dreaming about.
Here is a video that shows how to do a pretty nice application in an hour. Simply AMAZING!!!
You can download RIA Services for Visual Studio 2008 or VS 2010 Beta. Click here for more info on downloading.
BTW, the entire sample in the video is in the Documentation / Samples of the download.