I've been having a hard time trying to understand PyPy's translation.  It looks like something absolutely revolutionary from simply reading the description, however I'm hard-pressed to find good documentation on actually translating a real world piece of code to something such as LLVM.  Does such a thing exist?  The official PyPy documentation on it just skims over the functionality, rather than providing anything I can try out myself.
It looks like something absolutely revolutionary from simply reading the description,

As far as I know, PyPy is novel in the sense that it is the first system expressly designed for implementing languages.  Other tools exist to help with much of the very front end, such as parser generators, or for the very back end, such as code generation, but not much existed for connecting the two.
Where can I learn more about PyPy's translation function?