A new UK virtual mobile network is promising to give 25% of its profits to charity.

The People’s Operator (TPO) has set up a separate organisation - the TPO Foundation - that receives 25% of its profits and passes them on to good causes. In addition, customers can ask the TPO Foundation to give 10% of their individual monthly spend directly to a different charitable organisation of their choice.

Mobile media company Blyk, which ran a virtual network in the UK until 2009, has announced that co-founder Antti Őhrling is leaving “to explore new emerging opportunities”.

Mr Őhrling was also chairman of Blyk India.

In this week's edition of The Fonecast we're returning to the subject of location-tracking on iPhones. We then move on to Nokia’s reorganisation, Visa's investment in mobile payment start-up Square... and RIM's plans for BlackBerry.

We also prepare for our forthcoming 250th podcast by turning the clock back to 2008, when we spoke to virtual mobile network Blyk about its first 100,000 UK customers.