It's looks like a solid product. Now don't add any more features, just concentrate on acquiring and teaching users. That said, it could probably work well on a

It's looks like a solid product. Now don't add any more features, just concentrate on acquiring and teaching users. That said, it could probably work well on a touch interface if you removed the need to type/keyboard. And could probably be used by kids if you added more icons. I'm thinking that someone that looks for something like this is probably OK with shapes/visual, while a traditional programmer would prefer text.