The language almost caused me to move on immediately but I was pleasantly surprised the program itself did not use as the profanity found on the website.
That's sad that an issue to him and an indication that it may be best to leave him to his own devices.
In other words, he may be legally wrong but his wishes as the creator of the program should be considered... and respected.
This is very unfortunate as the program has very solid potential.
When seeing the rather unique approach to the application I immediately recognized the author considers himself an artist first and a programmer of software secondly.
As such his 'art' will be the most important aspect of his creativity.
I hope Charles reconsiders but I'm not overly optimistic.
Edit: I don't think Charles should be given up on. He's entitled to make a few mistakes on his way to success. ;)
So, bear with him and I think he'll come around especially if others convince him of the usefulness of Storyboarder for education purposes and such where (as Jane Eyre suggests) the colorful language will prove to be detrimental and work against having it rise to full potential.