Really great idea, would be super useful, it looks like its still got a ways to go though, it doesn't seem to recognize global variables yet for one
http://stackoverflow.com/questions/235360/what-is-the-scope-...
http://stackoverflow.com/questions/235360/what-is-the-scope-...
(I don't think "use strict" goes to the length of turning javascript into bracha's newspeak but I may likely have no idea what "strict javascript" actually refer to)