If there was one thing that mobile security expert Jack Wraith could say to every new mobile phone owner, it would be "go and register the phone on immobilise.com". That's the UK's national property register, which is linked to the Police national mobile property database.

Jack is our guest in this week's podcast. As the man who heads the Telecommunications UK Fraud Forum and the Mobile Industry Crime Action Forum he's well-placed to offer an informed opinion.

It's been announced that the solar-powered PUMA touchscreen mobile phone will be distributed in the UK by Elite Mobile through an exclusive partnership agreement with Sagem Wireless. The PUMA Phone, described as a 'smartphone' with a proprietary operating system, is equipped with a 2.8-inch screen, a 3.2-megapixel camera, multimedia player, FM radio, expandable memory, GPS and pedometer.

The second quarter of this year was the best quarter ever for connections via the O2 UK 'partner channel', according to a statement from the company today. Blackberry connections through partners also reached a new quarterly high, as did connections via O2 Centre of Excellence partners and both of O2's strategic partners (Avenir and Azzurri).

John George, whose chain of JAG mobile phone shops was founded in 1989, has decided to step down from managing his company. He recently agreed to combine his business with rival Go Mobile, run by Iain Humphrey, and planned to manage the merged retail operation while Iain Humphrey handled distribution. However, he now says it's more cost-effective to put all head office operations through Iain Humphrey’s business.

Mark Bridge writes:

Supermarkets. You either love ‘em or hate ‘em. Actually, that’s not true. Most of us seem to be happy enough with a half-price bottle of wine but less convinced about globalisation and supplier relationships.

But none of that’s bothering me today. Instead, I’m troubled – as I have been for several months – by the TV commercial for Tesco’s prepay mobile phone tariff.