Hey, I searched old spoiler-free threads for the link to that keynote checker that a member of these forums has updated for past keynotes, and it's already been updated to check for tomorrow's keynote!
http://insightview.com/keynotechecker/
Great! Thanks for sharing!
Although, personally, I consider watching a live stream as it happens to be "spoiler free". All that I care about is I see the press event as it happens before I read anyone's transcription or interpretation. IE, MacRumorsLive twitter feed. While they leave the interpretation largely up to readers, they don't get a perfect transcription of everything that's said. Even if they do, they lose the full visual and timing elements, which are part of the theatrics that I enjoy.
Having said that, I may just watch the live stream someone else posted a link to earlier, which is here:
http://cydiaism.com/watch-online-apple-wwdc-2012-live-streaming-for-free/
(IDK, I'm a little worried that the link may contain spoilers... Maybe the video is a little behind their transcriptions or something.)