The bp editor has similar features (code bubbles), though dynamic evaluation and code bubble workspaces are still in development. And I'm pretty sure it won't cost me 300k to finish it.
http://blitzprog.org/
Editing on an AST is a neat idea. I think it is a neat idea for an editor. Coupling tightly to a particular editor is going to hurt the adoption of your language, just like coupling to a particular language hurts the adoption of your editor.
But it seems like you have some neat ideas and I hope you are not too discouraged by the negative feedback.
I would love to see this evolve into something bigger. Keep up the good work!
Any why the hell is there a music video?
The screenshot isn't readable, feels odd tacked on at the bottom, and if you click it, you don't get an enlarged version. This is a language, not an editor, right? That's what the title says. But where is the hello world? Where is the list of snippets to give you a feel for the language?