Ever had a close look at it? It is pretty much a mess tied together with duct tape. I've been sifting through it for a month and finally decided that you cannot use it to build a product on top of that.
I'm the project manager for BigBlueButton. Our goal is to provide remote students a high-quality on-line learning experience. Building an open source web conferencing system is no small task, but it is very satisfying.
I noticed in their 'about us' they stated "That’s why we built dozeo". Funny, I thought they built dozeo using BigBlueButton :-).