Read original post by Joost van Schaik at .NET by Example
Regular readers of my blog know that there are some recurring themes: MVVM, maps and behaviors. I am a big fan of using behaviors ever since I learned how to use this rooting trough the source of MVVMLight. When I saw the BUILD videos I was elated. I saw a great merger of the best things of Windows and Windows Phone 7 styles and I knew I was going to get on board too. Five months later, I found myself being an MVP and on the Microsoft Campus of all places, and got a pretty unpleasant surprise: a lady presenting the new Expression Blend version said there would be no behaviors in Windows 8 Metro Style XAML. I was quite pissed off at the time. I still think that is quite an omission, but then again, when it’s not your deadline it’s always easy to criticize others.