It's been a day of excitement surrounding the iPhone OS 4.0 event, and now you can relive the keynote at your convenience. Apple has posted the iPhone OS 4 Event keynote on its QuickTime site. Watching Steve wax on is always a good time, but be sure to come back here for the latest in-depth iPhone OS 4.0 news!
Update: It's also available in the iTunes podcast for Apple keynotes.
Thanks to everyone who sent this in.