In this post, Adam Kinney discusses a bug reported about the WPF TranslateZoomRotate behavior.
This question on Stack Overflow referring to an error when using the new WPF behavior TranslateZoomRotate.
First of all, its nice to see the new behavior included with Expression Blend 4 in use.
The TranslateZoomRotate behavior provides support for gesture-based rotating, scaling and position translation just by dropping the behavior onto an element.