In 2014, Windows Phone went into 34.9 million handsets, a market share of just 2.7 percent, according to IDC. That is tiny compared to Android handsets, which numbered 1.06 billion, an 81.5 percent market share, and devices with Apple's iOS, which totaled 192.7 million, a 14.8 percent market share.
There is enthusiasm around Windows 10, and a sense among device makers that there's an opportunity to sell more handsets with a new OS, said Bob O'Donnell, principal analyst at Technalysis Research.
Microsoft's taking the right steps to becoming relevant in mobile again, tying software like Office 365 and services across all devices, O'Donnell said on the show floor.
O'Donnell projected Windows 10 to have a 10 percent smartphone OS market share by 2020.
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