One thing that caught my eye in the Euler test results is that Unladen Swallow comes in with a total time of 509.72 (seconds?) vs. CPython’s 569.37. That’s an improvement of about 10%. When you look at the wins, Unladen Swallow has 33 vs. CPython’s 51. That 5x improvement on CPython looks pretty far off.
Also, the Project Plan looks like it hasn’t been updated in nearly a year.
Lest this become another “Unladen Swallow is dead” post, I’ll also point out that Collin Winter has recently said they’re now targeting CPython 3.3. Not sure when that is, but 3.2a3 recently dropped, so it’s probably not too far off.