I think this is the leading edge of the next revolution. MapReduce, Hadoop, Cloud CPU cycles are the building blocks but we still need the tools that make it easier for scientists to operate on their datasets without having to be a hard-core coder. I wouldn't be surprised to see Matlab or some other offering from Wolfram take on that role.
The examples were from science because they struck me as the most powerful, but I think this will go well beyond science to many problems. It started with search, after all.
