Michael Robertson has been introducing an ajax based application every week. There were AjaxWrite.com and ajaxSketch.com which I have reported. From my tone, you probably would have guessed that I was not particularly impressed, partly due to their overloaded server and network.
This week Michael introduced eyespot which is REALLY impressive.
First you upload your media (directly by sending MMS message from your mobile or email to your own account at eyespot. Start up the mixer, using drag and drop, you can compose your video and viola, you have your mix for saving or sending.
This will open up a new capability for students all over the world!