Ehr, basically using GPU as CPU. Think of a CPU with 256 cores, something like that, if I understand correctly. Offcourse you need specially designed applications.
For example, you could use a GPU as a search engine. Instead of 2 or 4 threads, there are 256 running at once, making it possible to cover a lot of ground very quickly. Not sure if the analogy is accurate though, bit sketchy on the whole thing myself.
