I have started to work with three.js in the past couple of days, and must say, very impressive! :)
It's good to see the finally the possibility to create top quality 3D apps directly for the browser is a reality...
I have two requests so far, maybe they don't make much sense, but here they are anyway:
I know I could just as have edited the three.js source myself (actually I did, locally), but having these features by default make it easier to upgrade to a newer version.
There is a change event being dispatched in relevant controls.