I'm going to present an internal seminar at webMethods on ease of use in a few weeks time. It's a great topic, and there's always more to learn. Simplicity is the #1 thing that I have always strived for in whatever I've done, whether it's training materials, a book, software, or a presentation. I'm looking forward to extracting and writing down the rules of thumb that myself and others have used in order to achieve simplicity. The masters of simplicity in the world of software are Apple. Based on what I've read about them, this is directly traceable back to the value system of Steve Jobs, who has a strong aesthetic for sparse elegance. Another company with a similar mindset is Google. Once again, this seems to be driven from the top down by the company's founders.