My Quicksilver tutorial has been updated for B27. A fair amount has changed recently, as Quicksilver has moved to a plugin-based data module system. If you still haven’t tried Quicksilver yet, or are running an older beta, now is a fantastic time to jump on it. Also, the old version of the tutorial is available in O’Reilly’s new Panther Hacks book. It’s part of Hack #4, and I do have an author credit in the front of the book if you look hard enough.