Smart card specialist Oberthur Technologies has announced a new product called MultiSIM, which uses a single card to deliver the standard mini-SIM, micro-SIM and nano-SIM designs.

It has a detachable body enabling the card to maintain a ‘thin’ nano-SIM form factor that’s compliant with ETSI standards while remaining thicker for the other two formats.

In this week's show we look at Google's new product announcements, O2's closure of its mobile telecare service and the clearance of radio frequencies for 4G services.

We also talk about the latest collection of quarterly results from Apple, Samsung, Amazon, LG and Facebook. Who's doing well - and should anyone be worried?

We start this week's show by discussing the recent quarterly results from Google, Nokia, Vodafone and Microsoft.

There's also time to talk about SIM security, Ubuntu's crowd-funded smartphone, the HTC One mini, smart watches and an unusual process for recharging your phone battery.

Karsten Nohl from Berlin-based Security Research Labs has found a way to use ‘over the air’ updates to take over mobile phones.

Although it only affects older SIM cards, he says the security flaw could affect up to 750 million phones worldwide.

UK virtual mobile network operator Podsystem, which specialises in multi-network data SIM cards for machine-to-machine connections, is donating a number of its MultiNet Europe SIM cards to the Royal National Lifeboat Institution. The move is part of Podsystem’s ‘SIMs for Charities’ initiative, which aims to encourage partnerships between tech companies and charities.

Podsystem is also providing mobile data services at cost price.