'Getting started with Spring Framework' book that I started writing couple of months back with J Sharma is now available at amazon : http://amzn.to/VwbjdX
You can download the source code of the book from here: http://code.google.com/p/getting-started-with-spring-framework/downloads/list
You can post your questions and feedback here: https://groups.google.com/forum/#!forum/getting-started-with-spring-framework
