This week's podcast starts with news from Microsoft about an update to its Windows Phone platform and a cost-free OS offer to hardware manufacturers.

There's also a new flagship smartphone from Nokia, a roaming announcement from the European Parliament, a UK virtual mobile network from The Co-operative Group, a change at the top for Mozilla, retail expansion for Vodafone and an awkward end to BlackBerry's relationship with T-Mobile in the USA.

Acquisition announcements from Facebook and Intel are the first stories in this week's look at the latest UK mobile industry headlines.

They're followed by news about mobile payments, mobile banking, a phone with an invisible solar panel, customer complaints, low-cost 4G smartphones, productivity apps and an intriguing case of WhatsApp-itis.

Iain Graham, James Rosewell and Mark Bridge are reunited for their regular weekly look at the latest UK mobile industry headlines.

Today they're talking about smart watches, an Apple iPhone announcement, the new HTC One M8, the closure of Ovivo Mobile, text spam, peer-to-peer messaging, government hacking and mergers.

Producing mobile phones for older customers requires much more than big buttons and a simple interface. At Mobile World Congress last month we spoke to two major players in this growing sector: Swedish company Doro and Austria's Emporia Telecom.

Our first conversation was with Harald Obereder, Chief Technology Officer at Emporia, who spoke to Mark Bridge about handset design and user interface design. This was followed by an interview with Chris Millington, Managing Director for Doro UK and Ireland, about research and development in the 'senior tech' market.

We begin this week's programme by looking at Vodafone's acquisition plans in Spain before moving on to discuss universal mobile chargers and 4G roaming.

There's also time to talk about UK mobile coverage, EE's new customer tracking service, contactless transactions and a smartphone camera that can identify objects hidden behind something else.