Facebook has announced its latest quarterly earnings figures and has also revealed details of the social network’s mobile-based users.

The number of monthly active users (MAUs) was up 15% year-on-year to 1.28 billion, with mobile MAUs up 34% to 1.01 billion.

We begin this week's podcast with a discussion about the Heartbleed bug, the effect it's having on the mobile industry and the wider issues for all internet users.

We're also talking about the future of BlackBerry, UK 4G coverage, new CEOs, Bluetooth connectivity, privacy concerns and the next generation of mobile processors.

Facebook and WhatsApp have received a letter from the US Federal Trade Commission reminding them about user privacy.

In February, Facebook announced that it was planning to acquire messaging service WhatsApp in a deal worth $16 billion (£9.6 billion).

Messaging was very much on the agenda at Mobile World Congress this year, following Facebook's announcement that it was planning to acquire WhatsApp in a 19 billion dollar deal. So if the future for this type of internet-based 'over the top' messaging service looks good, what does this mean for SMS?

To find out more, we spoke to Stacy Adams of mBlox to learn what was happening in the messaging world, to find out how SMS is being integrated with mobile apps - and to discover some of the other ways SMS was being used by businesses today.

This week's programme begins with some of the biggest news stories that came out of Mobile World Congress.

Iain, James and Mark then move on to the other headlines from the past few days, including Boeing's secret agent smartphone, Apple's plans for mobile in-car entertainment, a new structure for Telefonica and new technology for mobile payments.

Mark Bridge writes:

Mobile networks aren’t what they used to be. As last week’s interview with Vince Russell of The Cloud demonstrated, more and more customers are relying on WiFi to augment their mobile data service.

Truphone is now planning to do exactly the same with voice calls and text messages by linking its mobile network with WiFi for even wider coverage.

Mark Bridge writes:

Apple launches a new product and BlackBerry pushes it out of the headlines. Who’d have thought it, eh?

Yes, Apple’s new $799 128GB iPad didn’t get much of a mention in the mobile press last week - thanks to the new BlackBerry 10 platform and two new smartphones. Memories of Stephen Bates’s awkward BBC interviews were soon forgotten as the touchscreen Z10 appeared and quickly hit the shelves of UK retailers.

James Rosewell writes:

During December 2012 in the United States the HTC Evo 4G contributed 20% of web traffic from HTC devices. What is remarkable about this figure is that the HTC Evo 4G was first released in June 2010 and is almost three years old.

The HTC One series of devices were released during 2012 and contributed less than 10% of HTC’s web traffic in the same month.

Are HTC devices released pre-2012 too good at browsing the web?

Faiza Elmasry of voanews.com writes:

Imagine shopping for clothes online and being able to run your hand across the screen on your computer or smartphone to feel the fabrics. That kind of simulation technology could be available within the next five years.

Mark Bridge writes:

Developing a successful mobile product or service isn’t just a question of having a great idea. There are all sorts of challenges, from the technical aspects of application development to the wider issues of branding and funding.

That’s where The Mobile Academy steps in. It’s a London-based mobile masterclass designed to give you a helping hand with innovation, whether you’re an entrepreneur, a business owner, a developer or a designer.

Iain Graham, James Rosewell and Mark Bridge return to review their mobile industry predictions from last year. Which mergers, partnerships and developments did they forecast correctly... and which didn’t work out as planned?

Later in the programme, the team anticipates some of the topics that will be hitting the headlines during 2016.

Mark Bridge learns about the mobile technology trends at Mobile World Congress 2015 by chatting to James Rosewell of 51Degrees, Dr Kevin Curran from the IEEE and Chris Millington of Doro.

They talk about wearable devices, wireless charging, mobile operating systems and much more... including some of their favourite products from the exhibition.

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.

In today's programme Mark Bridge talks to Chris Millington, who's Managing Director for Doro UK and Ireland.

They discuss the state of mobile retailing in the UK, the future of wearable devices and - as you might expect - smartphones for seniors.

We're back with a month of mobile industry news, including takeover talks and takeover rumours. O2 and Three are said to be discussing a merger... but is there any truth in the suggestions that BlackBerry could be up for grabs?

We also discuss Apple's record-breaking quarterly figures, the highlights of CES and the launch of Microsoft Windows 10, as well as saying farewell to the current version of Google Glass.