Ten years of PyPy
I'm personally very excited about the prospects for NumPy in PyPy, as this is my main use case for python.
Relatedly, on the PyPy homepage, you can give money to help grease the wheels on development of specific PyPy features: <a href="http://pypy.org/" rel="nofollow">http://pypy.org/</a>. There's also quite detailed proposals that describe where the money will go, how it will help each feature's development, why each feature is useful/cool, etc. To me this seems like a really awesome way to organize donations for an open source project and gives me greater confidence that my donation will have an impact.