100 Million Windows Mobile Devices

by 2007. The goal was set 6 years and 3 months ago:

On November 3, 2003, Microsoft announced that it intends to sell 100 million Windows Mobile devices by year 2007. This goal has been set by Steve Ballmer. Majority of Windows Mobile devices that are expected to be sold will be smarpthones, not just PDAs (Pocket PC). :: 100 million mobile Windows devices by 2007

Two years after that goal, in 2009, Microsoft sold 15 million units, down from 16.5 million in 2008.

AppleInsider | Gartner: Apple’s iPhone was No. 3 worldwide smartphone in 2009