This is a small application that runs on your machine and makes use of your processing power when you're not actively using the machine. I ran it on my work machine about three years ago, and allowed it to take up 100% of my computing power when I wasn't using it.
Why would you install and run this software on your PS3 (which by the way runs a 3.2 GHz Cell processor, which dynamically assigns physical processor cores [8 total in the PS3] to independently do different types of work)? Why to simulate protein assemblies, of course.
Simply, proteins are the body's nanomachines. They are used by the body to construct tissues that maintain processes and initiate protocols. When assemblies don't go right, people can develop diseases such as Parkinson's, Huntington's, Lou Gehrig's (ALS), Alzheimer's, etc. This software runs through permutations of assemblies, which allows researchers to have an abundance of data to directly apply to experimental therapies that could alleviate and potentially cure these diseases.
That's right, you can play your games AND save the world at the same time.
I'm suggesting that Dubya, Cheney, and Rove install this software on their cybernetic government-authored and highly evil proprietary systems in order to regain some semblance of humanity. At least then they'd be able to claim that they actually tried to help someone, and could potentially get themselves moved from the 9th level of Hell (reserved for those knowingly committing betrayal) to the 8th (reserved for those "merely" remaining fraudulent) . This is assuming, of course, that Dubya and Rove are Catholics, which they aren't, so they're screwed either way, and Cheney is a soulless killbot who will eventually reach his preprogrammed kill limit and will self-terminate in 2009 when the new President is inaugurated.