I have been using the arduino leonard for quite a while and was wondering why it seems so unpopular compared to the uno online. It was released way back in July 2012 and yet still does not seen to be as popular as the uno. It is cheaper than the uno, has more more io and can emulate a keyboard and mouse, so why is it not more popular. I understand that it takes a while for new technology to be adopted but come on, it has been over a year. Why do you think no one uses it?