As other commenters have said, multiprocessing is one of the greatest new features in 2.6 - it's the main reason I'm itching so hard to switch to 2.6 (though unfortunately I can't, until some libs I use do).
And having bugs is not a sin. Especially for 2.6, which is a version most production-heavy users haven't switched to yet, so it's a good testing ground.
I really liked this entry, thanks for posting it. How does a DB system decide when create a certain index ? Does it happen the first time some search is executed ?