Mark Bridge writes:

In this week's podcast feature, Iain Graham has been taking a look at 'box breaking' in the UK. Box breaking can take a variety of forms but it generally involves buying a 'pay as you go' mobile phone at a price that's subsidised in part by a mobile network - and selling it at a higher price to someone who won't connect it to the original network. The package of phone and SIM card is effectively 'broken', with the SIM often sold separately.

Carphone Warehouse Group plc has published its preliminary results for the financial year ended 31st March 2011.

It says its share of Best Buy Europe's net income was up 28% year-on-year to £60.4 million, while CPW Europe grew 18% to £134.6 million. However, Best Buy UK saw a loss of £62.2 million.

Everything Everywhere, which was created last July when the Orange and T-Mobile UK operations were merged, is planning 30 new UK stores this year. All will be branded ‘Everything Everywhere’ and will offer Orange and T-Mobile products and services.

The company opened five own-brand shops earlier this year as a trial. It says footfall at these stores was up over 25% compared to other communications retail stores.

This week's edition of The Fonecast looks back at Monday's big Apple announcements before talking about 4G interference on televisions, Windows on tablets, Acer's problems, a new price comparison site and a mountain rescue that was helped by a cameraphone..

Click here to hear this week's show on our website - or download the podcast automatically from iTunes.

A new report from IHS iSuppli says shipments of desktop computers and notebooks in the first quarter of 2011 have declined when compared to the same period in 2010. Worldwide PC shipments reached 81.3 million units in Q1 2011, down 0.3% from 81.6 million during the first quarter of 2010.

IHS iSuppli says the attention surrounding tablets contributed to weak consumer demand for PCs in the first quarter of 2011, although the extent of this cannibalisation is unclear.