New data: Windows Phone closes gap vs. BlackBerry - GeekWire

See the article link below for details on #1 (Android) and #2 (iPhone) market momentum

"The numbers from the IDC research firm, released this morning, put Microsoft in closer proximity to BlackBerry, which saw its share of shipments fall from 11.5 percent to 4.8 percent over the same time period.
If the trends continue, Microsoft appears poised to overtake struggling BlackBerry maker Research in Motion as the No. 3 smartphone operating system vendor in the coming quarters."

New data: Windows Phone closes gap vs. BlackBerry - GeekWire