Why it is COOL?
Beside learning programming, this little device has the power to become one of the most ubiquitous devices and to bring new level of our computing use.
It is very cheap, very small, it is capable of displaying Full HD resolution videos without any problem, (look it as a better performance than iPhone 4S) it can be connected to the internet and all this means that we can have computers in every room for any purpose without worrying about related costs, electricity bills etc.
By utilising this kind of devices, number of people using internet, social networks, etc. will grow drammaticaly and that means, more connectivity (for people), oppening of new niche markets, potential for development of new products of any kind etc.