A new report from mobile analysts at Juniper Research estimates that 320.3 million smartphones were shipped worldwide in the first quarter of this year.

That's a year-on-year drop of almost 6%.

Sony Mobile Communications has updated its Xperia brand with three new X-series smartphones: the lower-spec Xperia XA, the Xperia X and the premium Xperia X Performance.

All have an improved camera with ‘Predictive Hybrid Autofocus’, which is capable of tracking moving objects.

We're taking a look back at the biggest mobile industry news stories from February 2015, including allegations that the UK's security service tried to breach SIM card security by hacking into one of the world's biggest SIM producers.

We also talk about the planned BT and EE merger, the creation of two new UK virtual networks, some acquisitions in the mobile payment arena and a new Ubuntu smartphone.

The ‘explorer edition’ of Google Glass was discontinued earlier this year - but now Sony has stepped into the market, releasing a ‘developer edition’ of the Sony SmartEyeglass.

It’ll cost £620 and is already available to order in the UK, with availability expected from March.

Sony has announced a collection of new devices at the IFA consumer electronics show.

The Sony Xperia Z3 has a 5.2-inch display and a 20.7 megapixel camera. There’s also a smaller version, the Z3 Compact.

Mark Windle, head of marketing at OpenCloud, predicts that this year’s reduction in the number of traditional telecoms operators in some countries will provide an opportunity for other operators to innovate and capture market share in 2016.

He says next year will be a year of rapid change for telecoms… whether it’s MVNO disruption, competitive tariff pricing or simply defence from the ‘dark art’ of hacking.

Mark Bridge writes:

The most memorable moments in life often go unrecorded. You don't have your camera in your hands. Your finger is still hovering over the 'pause' button on your audio recorder. Or you were simply too busy experiencing whatever was happening. It's all about the one that got away.

That's where Kapture can help.

Mark Bridge writes:

James Rosewell shows me a colourful roll of paper that's the width of an iPhone but well over three metres long. When I look closer, I can see it's a printed copy of the Wall Street Journal's mobile website. That's a lot of scrolling to do... and a pretty unfriendly user experience for anyone reading the news online. Why does it work so badly?

This week's podcast starts with Lenovo's purchase of the Motorola Mobility smartphone business. Was it a good deal for everyone?

We also talk about network infrastructure sharing in the UK, mobile malware, 3G coverage, misleading apps, mobile advertising, Samsung's retail plans and global tablet sales.

We start this week's podcast by looking at the new Ofcom rules that should end unexpected mid-contract price rises for UK mobile phone customers.

There's also talk about misleading mobile network advertising, patent agreements, takeover bids, satellite broadband and 4G data usage... plus a curious patent application from Google.

In this week's podcast, James Rosewell and Mark Bridge talk about the new Zapp mobile payment scheme, Google's healthcare plans and an ultra-secure smartphone.

Also on the agenda are HP's new phablets, Jimmy Wales joining a UK MVNO, Apple's in-app purchases and plenty of research about tablets.

This week's podcast starts with talk about money, as Google buys smart thermostat company Nest Labs while O2 UK closes its mobile Wallet product.

We're also looking at the decline of SMS text messaging in the UK, the end of the Cash4phones recycling business, an alleged security breach that wasn't what it seemed, mobile service on the Channel tunnel and the growth of 4G.

Mark Bridge talks to Florent Stroppa, General Manager Europe for mobile value-added service specialist OnMobile.

In today's programme Florent explains what 2014 holds for the mobile industry, what he thinks will happen in the slightly more-distant future - and what lessons we can learn from 2013.