Let's start a message where we post the plugins that have been updated for 4.0. Our system is not deployable on 4.0 until several of the plugins are updated and I really don't want to have to search for each one every day to see when it is updated. So far, I don't know of any, but I do know that you should NOT upgrade if you are using Theme Builder. It hosed everything until I deactivated it.
