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.

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.

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.

It's been a week of diverse mobile headlines in which Jolla started selling its Sailfish smartphone, mobile shopping broke records and BlackBerry's CEO looked to the future.

We're also talking about smartphones for seniors, battery life, a looming spectrum shortage, phone theft and Sony's Smart Wig. Something for everyone, surely!

This week we're talking about two big announcements from BlackBerry: a luxury smartphone and some major management changes.

We also discuss the latest Samsung/Apple patent ruling, Vodafone's new mobile wallet, Android licensing, Doro's anti-virus deal, BYOD and the rise of the 'selfie'.