According to Roughly Drafted: In its first full quarter of sales, the iPhone has already climbed past Microsoft’s entire lineup of Windows Mobile smartphones in North America, according to figures compiled by Canalys and published by Symbian. That puts the iPhone ahead of smartphones running Symbian, Linux, and the Palm OS, but behind the first place RIM BlackBerry. The figures mesh with retail sales data already reported by NPD, which similarly described the size of the US market with a 27% chunk bit out by Apple’s iPhone. ... The most recent market share numbers are particularly embarrassing for Microsoft, especially after CEO Steve Ballmer announced in January that Apple wouldn’t capture more than two to three percent of the market and described his own Windows Mobile platform as having or soon acquiring 60 to 80% of the smartphone market.
You can read the full report here.