If you want to know what Web 20.0 is, then why not travel to the future? I’m currently reading Time Travel in Einstein’s Universe, which is a fairly good read if you’re interested in time travel and related issues of physics.

The fact is that I’m growing impatient of the latest mobile phones that are boring variations on the previous ones, so I thought I’d just skip forward 10 years and take a look at the user interfaces of the future.

If you really want to know what Web 20.0 is, then you don’t need a time machine for that. You need a “guru”!