Awesome post by Jensen Harris on the origins of the Ribbon interface element in Office 2007. I haven’t looked at the presentation video yet, but the slides are a good example of UI development stages and evolution of design.
Good list of reasons for all developers of all kinds of products to consider when thinking about customer requests, especially feature requests in software. This has broader implications for other markets as well.
Good advice on how to write *about* products and services, not write *around* them. Make sure you’re telling people exactly what they’re going to get when they buy something.