Wow, sounds cool! I'm afraid we don't have one yet - we're just running test builds for the beta, which right now has a little note saying it's not to be used for commercial purposes.
However, we hope to have licenses on sale soon. To be honest, if it's urgent you can go ahead and use the test builds for commercial things or whatever, as long as you grab a license when they become available. It'll be in the order of £150 (note to worriers: that's for the commercial license, the indie license is cheaper and most people will use that!)