Exactly. That's why the marketshare of the iPhone is down by over 10% in 2009, 4.5% in Q9/2009 and another 3.6% in Feb 2010. The iPhone market share shrinks but Apple reports that they sell more iPod touch than ever.
http://www.cultofmac.com/android-marketshare-grows-while-iphone-market-shrinks/32402
From the link:
"The problem isnt a falling interest in the iPhone, says Quantcast. At 63 percent, the iPhone has the largest piece of the Mobile Web Consumption pie, the firm said. .....While Apples market share continues to decline (remember theyre still gaining the most in absolute mobile web consumption), the competition have a long way to go before theres a real fight on their hands, the analysts said Thursday."
It's silly to think the iPhone will maintain mobile web consumption above even 50% as the mobile web booms. You're confusing market share with iPhones sold. aapl's also selling an increasing number of iPhones.