Google's Android smartphone operating system has moved up the rankings to fourth place, ahead of Microsoft's Windows Mobile and Linux, in the first quarter of 2010, according to research firm Gartner.
About 10% of smartphones sold in the quarter are running Android, which still lags behind Symbian from Nokia and operating systems for the BlackBerry from RIM and the iPhone from Apple.
Android and Apple were the only two mobile operating system suppliers among the top five to increase market share year-on-year.
A 49% jump in smartphone sales in the first quarter helped the global cellphone market grow 17% percent year-on-year, Gartner said.
Smartphones accounted for 17.3% of all mobile handset sales in the first quarter of 2010, up from 13.6% cent in the same period in 2009.
"As seen with the iPad and web books based on Google's Android platform, mobile OS ecosystems are developing and will move beyond smartphones to continue to deliver consumer value and a rich user experience," said Roberta Cozza, principal research analyst at Gartner.