Great idea! Isn't it at the opposite of the web 2.0, where machine tends to be only clients and all the data centralized in big servers? I like more this approach of each individuals dealing with their own data, you have more control on what you want to share or not!
Meet the Spacecraft That Could Save NASA a Fortune. Somehow related with Leopold's cubesats. To my eyes, this kind of spacecraft can open the door to "cubepayload"