More smartphones were shipped to China in Q3 2011 than to the US

"China has overtaken the U.S. as the largest market for smartphones by volume, according to one firm’s estimates.
Nearly 24 million smartphones were shipped to providers in China during the third quarter of 2011, compared to 23.3 million units in the U.S., data from Boston-based research and consulting firm Strategy Analytics suggests.The growth of China’s smartphone market has been significant, up 58% from just the previous quarter. Shipments of smartphones in the U.S. fell 7% from Q2 2011.
(Note the firm’s estimates only calculate the number of devices shipped, not sold, and that the U.S. still leads the market by smartphone revenue.)"
Source:  Mashable, 23rd November 2011