Our all beloved corporate overlord IBM, has handed over their internal WYSIWYG HTML-5 editor Maqetta, to the open-source dojo foundation so that it will thrive and be expanded by the community.
The feature list is already quite impressive, and even though I am no HTML-5 programming expert I assume it could be used for game creation already. But of course some extra specific extensions, pre-made game code and easier java-script integration would probably go a long way in making this tool even more user friendly for the game-dev. crowd.
