Android and Apple's iOS rule the roost, but a bevy of others gun for the number three slot.
Articles about Mobile OS
China's largest e-payment service will waive newly introduced levy on online transactions if these are placed via mobile devices, as it looks to drive more users for its mobile app.
EE's LTE network rollout sees more areas getting a mobile speed bump.
Is Windows RT dead? Is the desktop going away ? What's 'Threshold' got to do with it? Here's my latest attempt to try to make sense of where Microsoft's Windows roadmap will lead in the next couple years and beyond.
Can the country that took Windows Phone to its heart do the same for the Mozilla operating system?
After two years of waiting, the ex-Nokians' MeeGo-powered smartphone is finally here. Is it any good?
Norwegian operator Telenor is launching its Firefox OS phones, hoping to catch Christmas buyers in three new countries.
I've already railed against Apple's overhaul of iOS 7, with its jarring use of white and its over-reliance on textual Web motifs. But, as the rest of the software industry follows suit – and as Microsoft and Apple blur the boundaries between tablet and desktop user interfaces – it's worth asking if the user experience really is improving.
I'm not a big iPhone fan, but there's one thing it has basically right: a physical switch to go totally mute. Android is not as good and Windows Phone stinks at it.
A Microsoft official confirms the company is planning to trim the number of different versions of Windows in its portfolio.
Hiding an antenna in a shopping cart, researchers tested the success rates of stealing sensitive customer data in near-field contactless payments - and got "consistently good results."
Mozilla, the open-source Web browser group behind Firefox, doesn't appear to have much to do with Google until you look at the bottom line. There, you'll find that 90 percent of Mozilla's revenue comes from Google.
Updated: Moto X owners in the US will be the first non-Nexus devices to get KitKat, possibly even ahead of the Google Play editions of Samsung and HTC's flagship devices.
Instagram and Waze are the latest two big-name apps to come to Microsoft's Windows Phone portfolio.
Mozilla claims it has got thousands of apps in its Firefox OS marketplace, and has opened a Stack Overflow page to help answer developer questions.
BlackBerry is a sick company. Will a dose of Android apps give it a shot at health?