Kristian, I'm still not sure you get the need for the inline script / JavaScriptSupport.
Let's consider a Google map component with markers on it. With inline scripts, we can include the empty div and the markers in a single request. Without inline scripts you would need to either: 1. Include the markers in the markup somehow using data attributes or hidden html elements and then use a selector to populate the Google map with markers as it loads 2. Fire an AJAX request to get the markers. Option 1 can get a bit messy and option 2 has a delay. I don't think we need to deprecate javascriptsupport. I like having an option 3 :)
