SP1020 - BCS, theye're awesome

In my opinion of the greatest improvements of SP2010 are the new and improved BDC's. They're so improved that their name has changed to BCS.

The most important feature has to be the fact that they support updating now. This finishes them really off in my opinion.

Another EXCEPTIONAL feature is that you can connect you BCS data to a SharePoint list. Any modifications you make in the list will be applied to your BCS back-end DIRECTLY. You read this right my friend.

As Rolando Jimenez showed in his presentation: you can also show multiple tables from SQL as one record in a SharePoint list. I see this really taking off in SP2010, and becoming one hell of an important feature.