A university in Bergen Norway are using 5 ps3 to match their expensive supercomputers.
The processors in the PS3 are equal and a lot cheaper than the supercomputers they own, and they will become more prevelant in education as the years go on.
A supercomputer can reach around 0.7 terraflops and the ps3 meets 0.2 terraflops, and with 5 ps3's the power stretches beyond that of one supercomputer, since it can make 1000 billion calculations in a second.
This ps3 unit can be used to calculate complex mathematical operations, such as is used in a lot of research programs.
The price of the PS3 is miniscule to what they pay for a supercomputer, and this is because Sony is able to make money at the software side, since it is a gaming console.