We begin this week's podcast with updates on two topics we discussed last week: the potential purchase of a UK mobile network by BT - and the crowd-funded Jolla Tablet.

After that we talk about the GSMA's reaction to national roaming, the potential death of the landline, a new threat to Google, management changes and advertising for 4G data.

The Advertising Standards Authority has upheld complaints about a promotional message from UK virtual network Lycamobile.

A link on Lycamobile’s web site referred to “Unlimited Data, now with 4G”, while an advertisement on the site said “£15 per month ... unlimited data now with 4G”.

International virtual mobile network Lycamobile has appointed Chris Tooley as its new CEO.

He replaces Milind Kangle, who left the company earlier this year.

The Advertising Standards Authority has upheld a complaint about the www.lycamobile.co.uk web site, which referred to various tariffs as offering ‘unlimited’ calls, text messages and mobile data.

Smaller print then said “Unlimited usage is subject to a fair usage of 3000 minutes/texts/MB per month per SIM. Usage in excess of your fair usage allowance will be charged at standard rates.”

In this week's edition of The Fonecast we're talking to Milind Kangle, CEO of Lycatel - the company behind new UK virtual network Lycamobile. There's also a quick preview of the forthcoming Android-powered T-Mobile G1 and our usual look at the latest mobile news headlines.

Amir Lehr of Cellebrite writes:

Mobile phone faults pose a daily problem for mobile phone retailers. According to mobile diagnostics expert Cellebrite, 60 per cent of cases are software-related issues with the smartphone, and can be resolved within minutes.

Mark Bridge writes:

Last week a major retailer with a significant online presence announced plans to release its own-brand smartphone by the end of the year. No, not Amazon. This news came from Tesco.

Lawrence Lundy of Frost & Sullivan writes:

While the Galaxy S5 is an evolutionary product, there is not enough in there to make people upgrade from the 4. It doesn't push the envelope in any real way; we are in a sort of stasis now when it comes to smartphone innovation.

Jürgen Hase of Deutsche Telekom writes:

The Smart City is on its way. All over the world more and more cities are connecting all areas of their infrastructure. Pisa in Tuscany, for example, aims to improve its traffic management with a machine-to-machine (M2M) solution and a Big Data service provided by Deutsche Telekom.

Mark Bridge writes:

“Hey, everybody, we’re releasing a new flagship smartphone that carries all the hopes of the company with it. If this sells well, we could be saved. If not, it could be disaster.”

“Great. What shall we call our new phone?”

“Oh, we’ll give it the same name as the previous model. That’ll be fine.”

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.