This is revolutionary for space flight because of the cost margin advantage SpaceX will offer to those wishing to place things in space. A profitable space company is a step towards a space economy. The owner of SpaceX, Elon Musk, is revolutionizing all modes of transportation with his electric car company, Tesla, which is already producing viable all electric vehicles. Further SpaceX may eventually carry cargo to the International Space Station when the shuttle has retired (read NASA can't cut it in this economy).
JMP 57, 12: quantum mechanics for the universe
6 hours ago in Doc Madhattan