If you have not yet visited asciiwwdc, you are missing out on one of the best dev things of the year. Brought to you courtesy of the brilliant Mattt Thompson (aka Mr. NSHipster), the site offers searchable full-text transcripts of WWDC sessions.
Hop on over and try out a search or two. It's terrific.
Asciiwwdc will be a valuable discovery for any developer, and one I hope will stay up and available. In fact, the only thing I could think of to embetter this already cromulent service would be to integrate inline screen caps from the presentation slides.