It's not too difficult to localize your user interface into new languages. I don't know what language & framework you're using, but any modern software stack should make this not a big challenge. If you give me a contact e-mail or phone number I'm happy to talk with you further about how to do this. You have an impressive product and it would be a shame to limit the customer base to people comfortable with using English.

@iconoclast: agreed entirely. It just hasn't been the top priority. Very much top of mind for me, though!