I saw this ad on the TV show In Plain Sight last night, where Coldwell Banker was the “Exclusive Sponsor” (whatever THAT means!). It's interesting that now just about everyone is coming out with an real estate iPhone Application. Zillow's iPhone app is ranking in the top twenty downloads of all iPhone apps these days, and I suspect you'll see more companies come out with these as time goes on.
Coldwell Banker iPhone TV Advertisement