It's pretty cool to have running while you're watching TV or something. Watching the Apprentice backchannel while watching the Apprentice, etc. (Obama inaug and

It's pretty cool to have running while you're watching TV or something. Watching the Apprentice backchannel while watching the Apprentice, etc. (Obama inaug and Facebook did this well, too.) About to buy something? Twitter search for a quick and dirty finger-in-air to see whether you should rethink.