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:

Would you like to be part of our Mobile World Congress coverage?

Mobile World Congress is Europe’s biggest mobile communications industry show. It runs from 24th - 27th February next year in Barcelona and is expected to welcome over 70,000 attendees and around 2,000 exhibitors.

Mark Bridge writes:

Earlier this month, London-based smartphone company Kazam announced seven new Android handsets. That's pretty impressive... and is an even more noteworthy feat when you consider the company didn't even exist at the beginning of the year.

Mark Bridge writes:

Imagine books that could automatically link with your tablet as you touched the pages. Or posters that reacted to your fingertips and displayed the results on your smartphone. It seems this kind of Bluetooth-enabled interactivity is just around the corner, thanks to tiny low-power processors and a patented printing process that doesn’t require specialised equipment.

The future of customer service is to bridge the gap between the smart consumer with the smartphone and the bank holding his or her financial assets. Even though mobile applications are becoming increasingly powerful customer touch points, many banks are failing to leverage them in order to engage with consumers.

Mandip Shergill, Account Executive at Genesys, looks at how banks can maintain and strengthen the customer relationship in the mobile channel.

Ashley Gilmour writes:

A quick fact: nearly half of Facebook’s advertising revenue now stems from mobile ads.

That’s right – of the social network’s $1.8 billion (£1.1 billion) generated in the third quarter of 2013, 49% of it was made up of mobile advertising revenue. Last year, the channel represented only 14%.

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.