I finally made it to Las Vegas after spending more quality time at Dulles Airport than I had planned to.
The bag itself is made of plastic, so unlike other conference bags, it's not really good for much.
The contents, however, are quite impressive.
Electric Rain has a demo CD as do Telerik and Infragistics.
As for the reading material, there's a book called "First Look at Silverlight 2." I've thumbed through the book and I guess all the NDA stuff is out in the open. :)