That's somewhat tangential to the item at hand isn't it? We are talking about open source, not about hackability or the rather vague term of 'openness'. One cou

That's somewhat tangential to the item at hand isn't it? We are talking about open source, not about hackability or the rather vague term of 'openness'. One could argue that a device that is usable to a lot of people is 'open' and devices that all require their own teaching/learning are not.