Here’s a crazy idea: Open-source the WPF/E, endorse a Mono-based version, and make XAML an open standard. Why? Because an Adobe/Microsoft arms race ignores the real competition: Web 2.0 … Imagine a world in which browsers are ubiquitous, yet balkanized by incompatible versions of HTML. That’s just where RIA (rich Internet applications) players and their XML languages are taking us. Is there an alternative? Sure. Open XAML. — Jon Udell. Why Microsoft should open XAML. Software Development