I'd feel more comfortable if you had done some kind of double-blind testing with ADHD/non-ADHD and Inflow versus Garbled Inflow (just a bunch of features but no magic dust). Doesn't need to be publication quality.
We've actually done a study with a university in the US that has just been submitted to one of the main ADHD journals. It isn't double blind but it is a pre/post symptom and impairment study which is very encouraging. We hope to share a link once it is (hopefully) published.