And here’s a list of the new features http://i1.silverlight.net/content/downloads/silverlight_5_beta_features.pdf?cdn_id=1. A couple of the main features I took note of was the ability to do COM and pInvoking in or out of browser. Currently Silverlight4 allows out of browser trusted apps to do COM but this moves towards the ability to interact with software such as Office or physical devices such as medical etc within the browser itself and not have to install it as an out of browser application. Another great feature to take note of is the ability to put breakpoints in the XAML code where you are binding to a datasource. This is very handy for troubleshooting and debugging. There are tons more features to check out so have fun!
