Nigel Simpson is a Research Technologist in Sun Labs working on the Collaborative Environments project. His research interests include collaborative computing, mobile devices and ubiquitous computing. Nigel has worn many hats in the 20 years he's spent in the computer industry, including end-user/customer, system administrator, software developer, quality assurance engineer, support engineer, chief architect, architect and researcher. Through all of these roles he's been an advocate for users and product usability. He strongly believes that products should start with "who?", "why?" and "what?" but not "how?" which is usually the engineer's first thought. Nigel constantly strives to improve existing solutions and to find ways to solve "impossible" problems in ways that are human friendly.