Engadget did an excellent job of providing live play-by-play. Be sure to read their wrap-up.
To sum it up — there was a Video announcement (premium content for about $2/show will be available in the near future for download thru Google Video), but contrary to my earlier report, it didn’t have anything to do with Google Pack (which is a collection of Google software and other goodies, like Firefox and Trillian, packaged in an easy custom download/installer).
Other than that, there was Robin Williams. Like I said, Engadget’s wrap-up and photos are great. Hopefully Google will post video of Robin Williams’ hilarious improv session.