copacobana

http://www.copacobana.org/

this is a low cost ($10000) device which uses 120 FPGA's to do parallel 
computation work which uses little communication, such as brute force 
searches. it can crack DES in 7 days average at 2^35 attempts per 
second. it can likely be programmed to assist in hashcash stamp 
generation, which would be interesting for spammers.