New rules from UK telecoms regulator Ofcom will protect customers when they use their mobile phone on a foreign network. In addition, customers will be alerted if they are inadvertently roaming, perhaps because they're near an international border.

A new forecast from research specialists Canalys shows the smartphone market is set to recover next year. Worldwide shipments declined by 12% last year but that decline is expected to slow to 5% this year.

Vodafone Group plc and CK Hutchison Group Telecom Holdings Limited have agreed to combine their UK telecommunication businesses, respectively Vodafone UK and Three UK. The merger will create a large new network operator to compete with Virgin Media O2 and EE.

UK mobile payment service Paym will close on 7th March 2023. The service, which allowed users to make and receive payments using their mobile phone numbers, was launched in 2014.

Consumer protection organisation Which? has been given permission by the UK's Competition Appeal Tribunal to represent Apple and Samsung smartphone buyers in a legal case against chip manufacturer Qualcomm.

Mark Bridge writes:

The mobile user interface seems to fall in and out of fashion. Nokia and Apple have both transformed the mobile UI in previous years… but still the challenge of creating the 'perfect' user interface design remains.

This focus on mobile usability is the main topic of today's special podcast, which includes Chris Millington of Doro UK and Jerome Nadel from MobiWire.

Mark Bridge writes:

This week has been dominated by the media frenzy that is Mobile World Congress. James Rosewell and I were at MWC for all four days… but even a podcast every day wasn't enough to include all the news, so expect more reports from us next week.

Daniel Joseph Barry of Napatech writes:

Avoiding the dreaded Scissor Effect has become the number 1 priority for mobile carriers. The scissor effect refers to the phenomenon of rising infrastructure costs and flat revenues; an unsustainable situation for any business. The scissor effect has already been witnessed in fixed line networks and now mobile carriers face the same challenge in relation to mobile data services. Is it possible for mobile carriers to grow revenue per user in line with bandwidth usage?

James Rosewell writes:

Nokia held their Developers Day during day 1 of Mobile World Congress 2011. Rich Green, new CTO at Nokia, kicked off the event by talking about the future of Symbian. In a nutshell here are the key facts:

Mark Bridge writes:

“Hot products. Cool companies. Meet the press.”

That was the tagline for ShowStoppers, a showcase event that took place last night before today’s opening of Mobile World Congress. As you probably heard in today’s podcast, I went along and met a few of the participants.