Thanks guys! :-D
@Ryan: Unfortunately I'm disallowed by my employer to release any code before I go through a painful process of Conflict of Interest. I think it's worth trying that route so I'll start working in that direction :) About the web version... It's in progress!! My brother is taking care of the web stuff (he likes node.js but I hate it). We have something that works "some times" in which we can throw some heroes in the same dungeon. That's fun. However, that's still not polished enough to be shown. The GUI that I've released was intended as the "debugging arena" to create your own heroes before submitting them to the online arena.
@Paige: I hope you can try it in a VM. I was about to use Qt instead of WPF for the GUI (the core is in C++ anyway), but their non-open-source license put me off the idea. And I don't like GTK... :(
Btw: did I send this announcement twice? I though I sent it yesterday, but I couldn't find the email in the archives, so I sent it again today... I hope it's not too spammy.