Twitter: I'm afraid it would drive me crazy!

I don't recall how I bumped into Twitter, but I'm really curious why anyone would really want to be so hyper-connected, why Wired supposedly said* it is "incredibly useful," and why, as Time apparently said, it is "on its way to becoming the next killer app."

Got any ideas?

* "Supposedly said" because I did a search for Twitter on Wired's magazine website, and came up empty-handed.