If you pop over to @smartarg you would be allowed to wonder what was going on with their account.
Here's a snapshot.
Actually, knowing some of my readers - you've probably already guessed. Here's the ad they produced.
And yes. I might concede this wasn't very helpful for the community and isn't really an example of earned media. I don't think is the agency trying to cope with Twitter by pretending it's a broadcast/TV channel instead. This is just a solid, creative, idea.