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The US Air Force Research Laboratory in Rome, New York picked up 336 PS3 systems in 2009 and built itself a 53 teraFLOP processing cluster. Once completed as a proof of concept, Air Force researchers then scaled up by a factor of six and went in search of 2,200 more consoles (later scaled back to 1,700). The $663,000 contract was awarded on January 6, 2010, to a small company called Fixstars that could provide 1,700 160GB PS3 systems to the government.
Read the full post here on ars technica