XAML Spy is the visual runtime inspector for Silverlight, Windows Phone, WinRT and WPF applications. It provides unprecedented access to all aspects of any running XAML application. Interact with the UI visual tree, monitor events, extract XAML, explore the contents of the package and isolated storage, view statistics and more, much more.

Version 1.1.6.0 - December 2012 Update released on December 19, 2012.

Added real-time sensor readings from local and remote devices
Improved mouse cursor position visibility when ruler enabled
Improved error messages
Fixed a message serialization bug in the network stack
Fixed a DuplicateKeyException when same name types exist in different namespaces in XAML app
Fixed a bug where Silverlight OOB apps do not launch correctly

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