The PyPy developers seem to be pivoting from research mode to creating an actual usable Python implementation.<p>I'm speculating that this has to do with the fact they're now receiving funding from Google. Google has invested in Unladen Swallow, but that project seems to have fallen pretty far short of its goals, which were less ambitious than PyPy's anyways.<p>I can imagine Google asking the PyPy developers to focus on creating a real-world usable Python implementation for the short/medium term.