All atwitter

Twitter is not very easy to define. Well, actually, it is a kind of text messaging. Simple, in that regard. But, it moves so fast, using so many modes, that it seems all atwitter!

• Mobile Texts
• Instant Messages
• Desktop Apps
• Web Timeline

It's social networking - messages flitting from one place to another.... twitterers communicate in tweets (short text messages).

• atwit·ter (ə twit′ər)
  adjective
  in a state of nervous excitement