In his blog yesterday, Jonathan provides some insight into the progress Sun has made in High Performance Computing. 

Money quote: "and last, but certainly not least - if you'd like to try a supercomputer on an hourly basis, just point your browser to network.com... we've made a ton of progress in the past 6 months..." 

We're currently running a special promotion right now. Anyone who signs up for Network.com receives 200 free CPU hours!