>Now, I'm waiting to see how data-binding was improved on Whidbey (if at all). Can you comment on this, or it is under NDA yet?

What is public and not under NDA is on a video you can watch online at http://www.fawcette.com/reports/vsliveny/2003/whidbey/, and it does show some (but not all) of the new data features coming in Whidbey.