I'd like to second the request for a very detailed blog post written by one of the PyPy devs on how interested parties can contribute to the development of Nump

I'd like to second the request for a very detailed blog post written by one of the PyPy devs on how interested parties can contribute to the development of Numpy on PyPy. Lack of Numpy support is the showstopper for me and a lot of other people in terms of switching over -- almost everybody who wants faster Python is using Numpy in some way or another :-) This is something I would be really interested in working on.