R6RS Implementations and Licensing

Why are there no good, free, and non-GPL R6RS Scheme implementations? How the fuck am I supposed to embed this into my applications when I'm forced to fucking release the source code to the rest of my software under GPL. No wonder it doesn't have a lot of community adoption outside of academia and the open-sores community.

>>29
If the people who updated Racket, Larceny, and Chez to support R6RS are the same people who created them, then they are qualified.