He says that so casually, like it was an original idea. And, he's not bothered by the fact that it took them a year and half to launch.
Well, considering how long it took Twitter to scale and stop falling over, I'd say taking a little while longer to launch is a good thing.
Immediately brings to mind: http://www.thumbtack.com/
If they would really give this a fair shot with their resources they could really make something of it. I'd love to give this a shot if they did this as a skunkworks project rather than their generally top down approach.
The logo looks like somebody took the bing font and merged it with the technorati icon, with a near-fatal dose of compression artifacts.
Sorry, AT&T is not my favourite company :-)