Silverlight 4 Beta - A guide to the new features

"This beta release is a developer release. This means that this is a preview mostly for developers to understand the new features and continue to get feedback. No “end-user” runtime is available for this release, nor is a “go-live” license for customers wishing to put their applications into production. If you have questions on this, feel free to leave a comment here. Enough blabbing, here’s the goods. WARNING: Long post ahead…but filled with information."