Apple has warned customers that its two-pin iPhone mains chargers may overheat “in rare cases”. However, the three-pin model used in the UK is not affected.

The A1300 5W European USB power adapter was supplied with some iPhone 3GS, iPhone 4 and iPhone 4S models shipped from October 2009 to September 2012.

The European Commission has opened three investigations to examine whether tax authorities have made appropriate decisions about corporate tax paid by Apple in Ireland, Starbucks in the Netherlands and Fiat Finance and Trade in Luxembourg.

It’s launched the investigation following media reports that suggest that some companies have received significant tax reductions through ‘tax rulings’ issued by national tax authorities.

Mark Bridge writes:

Every week we produce a half-hour podcast that covers all the biggest news headlines for the UK mobile phone industry.

Thanks to a special offer from Scribie.com, we can also offer a transcription of last week’s programme.

Mark Bridge writes:

Apple kicked off its 2014 Worldwide Developers Conference (WWDC) last week with an announcement about the forthcoming iOS 8 operating system for iPhone, iPad and iPod touch. There was some catching up, some innovation and a couple of new services designed to work with home automation and health/fitness devices. What’s Tim Cook’s plan? We’ll have to wait and see.

Iain, James and Mark begin this week's podcast with Apple's recent iOS 8 revelation and its plan to acquire Beats Electronics.

They then move on to discuss Samsung's Tizen-powered smartphone, a new flagship device from LG and the latest Microsoft Surface tablet - as well as a network takeover in Ireland, BlackBerry’s M2M moves and UK price changes for Vodafone.