The keynotes and the big sessions will be live, everything else will be published in 24h
All the keynotes will be streamed live, like they have in previous years. This means that you won't miss any of the big announcements and you'll even be able to live blog the whole thing from home.
The important sessions focusing on specific products will also be live streamed. Videos for everything that is streamed live or not will be available online after a day.
All of this means that you won't miss out much and you'll be able to do it from home without flying halfway around the world.