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 and the South Korean government have signed an agreement that’ll see them working together to create a global definition of exactly what 5G mobile technology is, what it’ll do and when it’ll be available.

Neelie Kroes, Vice-President of the European Commission for the Digital Agenda, and Mun-Kee Choi, who’s the Minister of Science, ICT and Future Planning (MSIP) for South Korea, also agreed to co-operate on 5G research.

Vodafone is planning a takeover offer for Cobra Automotive Technologies, an Italian company that provides in-car connectivity and security technology.

Cobra provides pan-European telematics services to companies including Audi, Bentley, Ducati, Ferrari, Lamborghini, Maserati, Porsche and Renault.

Samsung Electronics has announced the Galaxy Tab S, which is described as the company’s thinnest and lightest tablet so far.

There’ll be two screen sizes - 10.5-inch and 8.4-inch versions - and a choice of WiFi-only or WiFi + 4G connectivity. The tablets are just 6.6mm deep and weigh from 294g (for the 8.4-inch WiFi-only model).

Mark Bridge writes:

What would you say to a tiny little device that enabled you to recharge your smartphone almost anywhere, whenever you wanted?

This is pretty much what a US-based company called Nomad is promising. In fact, they sent me two of their latest products to try.