An update of Silverlight Spy is now available for download. This update adds support for Silverlight 5 Beta and Silverlight 4 GDR 4 (released a week ago). Furthermore this Silverlight Spy Update adds syntax highlighting to the DLR shell, Windows 7 Jump List support and full event monitoring for Popup and Silverlight 5 windows.
A word on Silverlight 5 Beta
Please note that Silverlight 5 Beta is really a beta, it's a bit rough around the edges and consequently you may see some unexpected behavior when running Silverlight Spy with Silverlight 5. This will be taken care of as soon as Silverlight 5 reaches RTM status.
Read more: First Floor Software