University of Florida has designed Pico satellites which would be slightly larger than a cricket ball. This satellite could be mass created and mass launched and could work in Swarms to collect space data and transmit to the Earth. More countries could send and afford such satellites and they would also cost less and save metals on Earth. They could be in space for years together. Some difficulties which these satellites could face could be that it would be difficult to align the devices on the Pico Satellites for which special routines could be required.
Some of these satellites may not be able to work as independent satellites but could be used as helper satellites to the main satellite giving it complimentary and additional functionality.