After catching up with last week's Microsoft announcement about new CEO Satya Nadella, we go on to talk about big changes for Brightstar and Sony as well.

There's also mobile payment news from MasterCard and Weve, some patent agreements, a warning about second-hand smartphone sales, a forecast of mobile data growth and a report about app developers.

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.

Analyst firm Ovum has published its mobile payment and mobile advertising predictions for this year.

Ovum expects continued technology and service innovation, notably around location-based applications, in the mobile payments space in 2014. However, there will be increasing complexity within the mobile payments ecosystem this year, and on-going challenges around the business model for digital wallet services.

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.