Please hold off on this review. Instead of just adding the row index, we should really pass a concrete Context object that has the row index, value, etc... so we can add more fields in the future. I can already predict that people are going to want to know the column index. I'll update the patch on Monday and send it out for review.
http://gwt-code-reviews.appspot.com/1129801/show -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
