guess there will be more of these stories:

[german sec researcher] Roth used Amazon's Elastic Compute Cloud service to access a graphics processing unit cluster and break through a secure hash algorithm and solve 400,000 passwords per second. It took 20 minutes to break into the network, at a cost of 28 cents per minute, according to Roth. | via technews, esecurity planet

breaking 400,000 of these passwords per second would be fast indeed. in fact, it took one second to zip through 400,000 possible passwords per second.
20 minutes were necessary to break into a network in his neighborhood, ... with improvements in the code, he could do the same in as few as six minutes now.