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 writes:

Farewell for another year, dear old International CES. The Las Vegas-based consumer electronics show is but a fading memory as the mobile industry starts preparing for next month’s GSMA Mobile World Congress in Barcelona.

However, what happened in Vegas doesn’t stay in Vegas.

Last month a report from Ben-Gurion University in Israel identified what it described as “a critical vulnerability” in Samsung devices that used the Samsung Knox security system.

The issue, which the university said “could be used to bypass all Knox security measures”, was raised by a PhD student.

Iain Graham, James Rosewell and Mark Bridge return with their first mobile industry podcast of 2014.

This week they're looking at new Samsung, Sony and ZTE products from CES, they're talking about Android embedded in cars, they're catching up with the latest news from BlackBerry, they're discussing cheque payments by smartphone, they're revealing complaint data from Ofcom and they're investigating quite a few other stories as well.

Samsung has revealed four new tablets at CES 2014: one Samsung Galaxy NotePRO device and three TabPRO devices.

In addition, Samsung has announced the ‘Samsung Smart Home’ service that’ll help consumers manage Smart TVs, home appliances and smartphones through a single platform.