Facebook has created an engine, HipHop, to translate PHP to C++ which can then be compiled for performance while still having the benefits of writing in a scripted language for ease of development. It's an interesting idea and I can't say that it surprises me. It's tempting to run out and give it a try.
This is the kind of stuff that excites me and I wish I could get involved in. I have my own ideas on how to revolutionize programming too.