Cubesats demo formation flying. http://www.parabolicarc.com/2014/12/31/canadian-researchers-demonstrate-cubesat-formation-flying/
Another video on Michigan Engineering's CAT plasma thruster. With 7 kg payload a 6U cubesat can reach Jupiter in 3yrs from C3 for <$10M per cubesat. This is why planetary scientists are very interested/excited by the advances in smallsat and cubesat technology.
Weather forecasting by another startup using cubesats.https://gigaom.com/2015/01/29/spire-wants-to-improve-weather-forecasting-with-tiny-satellites/
NASA to launch 14 research cube sats. These are mainly from universities.http://www.parabolicarc.com/2015/02/07/54600/