Real-time search is, appropriately enough, going to become quite visible very soon. Google announced today that it's rolling out real-time features, and the comprehensiveness of this effort is almost unprecedented as Facebook, MySpace, and Twitter are all onboard.

While the world has focused on Google Wave as a mash-up of chat, e-mail, and document sharing, it's really something else: Google Wave could be the Twitter that everyone really wants. Maybe it's the Facebook, too.