Robert Hanson is an Internet application maintenance specialist dealing with a host of different languages, databases, platforms, and frameworks. He has been programming professionally for over 10 years, half of which has been spent maintaining and enhancing existing web applications. Robert is the maintainer of the popular open-source project, GWT Widget Library, a collection of tools and widgets for the Google Web Toolkit. Adam Tacy is an IT consultant with a track record of delivering Java applications across the energy and automobile industries. He is involved in evaluating and bringing structure to new development technologies, often in early adopter projects as the project manager. Adam has contributed a number of widgets to the GWT Widget Library.