It concerns micro-messaging and realtime streams. Micro-messaging is fast become a standard -- if not the standard -- form of realtime communication online; and as the article argues:
Whoever is in the driver’s seat of this micro-message bus will be in an enviable position, which is why everyone is trying to clamor aboard in hopes of taking over the wheel.
If you are like me, you already do more of your communicating online via Twitter than by email. More importantly, it's these streams of information that many of us are becoming more and more dependent upon for getting good value out of the Internet.
The ability to navigate this realtime stream and to teach our students how to get, analyze, and evaluate information coming through on it is a priority skill -- a real network-based immediate-global-connection skill. It's also a little hint of where we are headed as the semantic web develops.