The yesterday introduced incremental livesearch here on this page got now keyboard access. Go to the search field, search for something (without hitting return), and then use the up/down cursor keys and now hit returnā€¦ Improves usability a looot, IMHO. Should work in Mozilla, Safari and IE, but bug reports are welcome ;)

Update: There's now a LiveSearch Roundup and a wiki page for the whole project. Please visit them, if you're further interested in the project.