Ofcom has announced the organisations that’ll take part in its trial of ‘white space’ wireless technology. The so-called ‘white spaces’ are temporarily unused gaps in the digital terrestrial TV spectrum.

Technology using these spaces won’t need a licence but will been to check that the frequency is unused before starting transmission.

This week's podcast starts with the world's slimmest smartphone (at least for the moment) before introducing a new smartphone company and even more new products from Samsung.

We're also talking about the battle of Instagram vs Vine, the sale of O2 Ireland, mobile retail web usage, the new CEO of BT and a new report about an unexpected health threat to mobile phone users.

Mark Bridge writes:

Another week, another couple of product announcements from Samsung. There appears to be no stopping them, despite a recent drop in the company’s share price.

This time it’s a couple of tablets – one of which runs both Android and Windows 8 – and a 20 megapixel camera that’s got a 4G-enabled Android device built in.

BT CEO Ian Livingston is to step down from his role in September, having been asked to become the UK government’s Minister of State for Trade and Investment.

Gavin Patterson, who’s currently chief executive of BT Retail, will take over as chief executive of BT Group plc.

BT has announced a set of solutions designed to help organisations benefit from a ‘Bring Your Own Device’ policy that lets employees use their personal smartphones and tablets for work.

It describes this as an integrated approach designed to help CIOs deploy smart devices on a large scale while improving the end-user experience.