Jim Meeker thinks that strongly typed DataSets are cool. Shawn Wildermuth has an article about Improving Typed DataSets on OnDotNet that shows you how to rename classes, properties, and relationship accessors, and define how to handle database nulls through annotations. If you've ever hated the default method names or wanted to customize them to be more object-oriented, this is the article! I usually only do this if I am working on a large app and the improved readability will help other developers.