Holy Toledo - this is amazing! It's an editor/DSL integrated environment that allows you to compose your own DSLs into code in the editor, then autogenerate the output language when needed - through multiple levels of abstraction if necessary. Just watching the demo screencasts is making me smarter.
Anyway, this is kind of what I want to do, except, like the emperor in Amadeus, I find there are "too many notes". I need more simplicity. Maybe. Although damn. It sure is pretty. There's one embedded decision table - right in the C code - that gets translated into a C-like language with a "gswitch" statement and then further into straight C. That is tasty.