Can you elaborate on how you think bitcoin, a digital currency backed by nothing, could replace a solution that can be directly monetized? I don't see bitcoin coming into use outside of a narrow audience, namely very tech savvy individuals/small businesses.
Besides companies not buying into the baseless payment scheme, Bitcoin, for lack of better words at the moment, just doesn't offer the sexiness or appeal of Minno. There is obviously a stark contrast btwn Bitcoin's interface, visual appeal, and ease of use and integration (sort of) and that of Minno.