After catching up with last week's Microsoft announcement about new CEO Satya Nadella, we go on to talk about big changes for Brightstar and Sony as well.

There's also mobile payment news from MasterCard and Weve, some patent agreements, a warning about second-hand smartphone sales, a forecast of mobile data growth and a report about app developers.

Mark Bridge writes:

Mobile phones have been hitting the mainstream news over the past few days. There was Channel 4’s report about data on second-hand phones not being properly deleted before the handsets were re-sold, there was the latest round of the Smart UK Project and there was Tim Muffett’s story about the mobile-enabled high street on BBC Breakfast this morning.

Microsoft has appointed Satya Nadella as its new Chief Executive Officer, making him only the third person to have held this role.

Mr Nadella, who’s been with the company since 1992, will replace outgoing CEO Steve Ballmer from today.

Mark Bridge writes:

Recent figures released by ABI Research have prompted the market intelligence company to ask whether Google is losing control of the Android ecosystem.

At first glance, Android dominated smartphone shipments for the final quarter of 2013. ABI Research says 77% of the 287 million smartphones shipped in Q4 2013 were running Android.

The latest financial results from Nokia show the company making a net profit of €41 million for 2013, which compares favourably with a €1.483 billion loss in 2012. Annual net sales for the group were €12.7 billion, down 17% year-on-year.

Nokia’s NSN division - which manufactures network equipment and will be the main part of the company when its devices and services is taken over by Microsoft - made a net profit of €15 million, compared with a net loss of €1.4 billion in 2012.