I sent the author a note asking about that, and whether or not he'd be willing to license under a Creative Commons or similar. If this technique works for dyslexics, then it'd be great to have a free version out there!

I find it quiet greedy and tightwad to ask for money for this thing, for 2 reasons: 1) It will help sick people. 2) It's based on other people research.

EDIT: think about those who made great software (Linux, emacs, etc.) and made it available for everyone, for free, and think about a guy who ask 2$ for a font that might help sick people.

Hi creator of the font here - A Creative Commons doesn't suit me, but I do allow people to embed it in web pages if they give credit :)