I have published the presentation slides and examples of 
my Herbstcampus conference talk on 
my website. In the talk I have presented some of the new features of 
GWT 2.0. At the end of the talk there were some code demos to showcase the most important new features, including 
Layout Panels, 
UiBinder and 
Code Splitting.

I used a small calculator web application for the example. The code can be found 
over here...