Apple Thoughts: iAd Predicted to be a Success

"The pie chart at right below is somewhat premature, given that it is IDC's best guess -- via Bloomberg Businessweek -- of what the $500 million mobile advertising market will look three months from now."

Starting at 0% at the beginning of this year, and IDC predicts Apple will have 21% of the market for the mobile advertising market, so I'd say you could call it a success. That is if the prediction holds true.