The reasoning behind the current homepage: people were pretty excited when they figured out what to do… it was a little burst of positive feedback that got them to see that their actions were directly responsible for making the little dude move around. And they learned something very important about the tool.
Maybe just a demo video works, maybe links to other people's creations… We're planning on treating it like adults and doing some A/B testing. :)
I agree, that "e" logo need to never be hanging out in the middle of the page like that! I'll get it out of there ASAP. We've been mainly testing on taller browsers! :D