This talk covered went deeper into Data Controls in Whidbey covering more advanced topics like caching, configured connection strings, master-details, and much more. Overall it looks like MS has done a lot of thoughtful work on how to make data controls better in Whidbey and how to enable developers to do what they are trying to do.
Data Source Caching
Sql Cache Invalidation
DataGrid Filters
Configured Connection Strings
Master-Details
Databinding in Templates
Hierarchical Data Sources
Again this was a good session that covered a lot of ground in a very short amount of time. ASP.NET developers are really going to like these new features. There wasn't a whole lot of applause during the session but I think this was mostly due to people trying to take in what all these new features mean.