Good news!
I think c2 is great for creating certain games and it certainly would be helpful if you do nice animated interfaces for other web related applications.
One nice feature for the c2 ide would be the ability to easily call or execute javascript either embedded in the main c2 codebase or in the parent web page (eg. index.html).
It should then be possible to utilise an external library to show a video file on the same webpage via a overlay lightbox/css trick.
Should also then be possible to display a layer with custom html :)