Satyen Desai (@dezziness) leads development of the YUI 3widget infrastructure, a system that is currently in beta and due for its first production-quality release in Q1 2010. At YUICONF 2009, Satyen provided a deep-dive on this emerging foundation in his session, “A Widget Walkthrough.” If you’re considering the development of YUI 3-based widgets to share on the new YUI 3 Gallery, or if you simply want to understand more deeply the inner workings of YUI 3 visual components, Satyen’s talk is a fantastic place to start. (Note: Satyen has an earlier YUI Theater session on the YUI 3 architecture that is also a must-see for serious YUI 3 developers.)