It looks like the next 100 Dove CubeSats will be deployed by conventional launch vehicles presumably into a higher orbit which will give them an extended lifetime compared to the 5 or 6 months that the ISS offers.

But it may completely tie up the entire CubeSat capacity of 3-5 rockets which could produce a shortage of launch capacity in 2015/16. See

http://amsat-uk.org/2014/03/19/100-cubesats-to-image-earth/

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