http://www.richarddawkins.net/news_articles/2013/2/9/emdrive-china-s-radical-new-space-drive
This break the rules but maybe?
By using superconducting apparatus, Shawyer says that the Q value, and hence thrust, can be boosted by a factor of several thousand -- producing perhaps a tonne of thrust per kilowatt of power. Suddenly it's not about giving a satellite a slight nudge, it's about launching spacecraft.
I’ll keep my eyes open and see if something comes from this. 10 buck says nothing
Chances are that what will result, if anything, is a fantastically expensive way of stabilising or aiming satellites for longer than is currently practical.