Driven by smartphone sales, the mobile phone market rebounded with 21.7 percent year-to-year growth in the first quarter of 2010, IDC says. Meanwhile, as of April 1 Android was available on 34 different devices from 12 manufacturers, with Android ad-view traffic growing at a 32 percent rate over the last year, says AdMob.

A recent report from ABI Research highlights the rise of mobile Linux, estimating that 23 percent of the world’s smartphones will have a Linux operating system by 2013. It appears that much of that growth will come at the expense of Nokia’s Symbian, and that LiMo and Android will be the main beneficiaries.

The number of phones shipped using Google's Android platform is set to grow much faster than the iPhone this year, estimates from Strategy Analytics maintain today. Devices like the T-Mobile G1 have just a small fraction of shipments today but are expected to grow 900 percent in 2009 as multiple extra smartphones launch and more carriers come onboard.

Android will trail only Symbian in mobile phone market share by 2013, according to IDC. Android phones such as the pictured Sony Ericsson Xperia X10, which is now heading for NTT DoCoMo, will grow 150.4 percent to 68.0 million units by 2013, but other Linux-based phones will struggle, says IDC.

The annual Mobile World Congress (MWC) is always a highlight of the year for the mobile sector but this year's show was also a big one for open source software. Traditionally in a market dominated by proprietary operating systems there has been a significant shift towards open source software by mobile phone makers over the past year.

At this year's Mobile World Congress(MWC) in Barcelona, while Microsoft announced its Windows Phone 7 Series this week, a number of other companies are announcing their new Android-based devices. The open source Android OS devices, which range from mobile phones and notebooks, to tablets and Internet Devices, include updates to popular well known handsets and several new mobiles.

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One of the major themes that emerged from this year’s Mobile World Congress in Barcelona was Linux, with new Linux-based handset platforms on show and various applications and services for mobile Linux. Could this mean that Linux is likely to be a major rival for other mobile operating systems such as Symbian?

The Mozilla Foundation says the mobile version of Firefox, planned for release later this year, has been sped up nearly 600 percent in its latest builds. The evolving product, which will run on Linux-based devices, has also received several interesting new user interface (UI) proposals.