Virgin Media has revealed a new ‘unlimited’ mobile phone tariff that offers unlimited calls to 0870, 0800, 0845 and 0808 numbers as well as unlimited mobile data, text messages and UK calls.

The package, which also includes a mid-range smartphone with insurance, is called VIP and is priced from £26 monthly for customers who have Virgin Media’s broadband, TV or home phone service. Other customers will pay £31 per month for the two-year minimum term contract.

O2 UK is the latest mobile network to offer its customers free WiFi on the London Underground, thanks to a wholesale deal with Virgin Media. It’ll be available from June.

Customers with Vodafone, Orange, T-Mobile and EE - plus Virgin Media - are already able to use the service.

There are many mobile boundaries being blurred in this week's podcast.

Topics include Truphone's combined WiFi and mobile service, Skype's move to direct mobile billing, the rise of 4G and an Android-controlled satellite.

Mark Bridge writes:

Mobile networks aren’t what they used to be. As last week’s interview with Vince Russell of The Cloud demonstrated, more and more customers are relying on WiFi to augment their mobile data service.

Truphone is now planning to do exactly the same with voice calls and text messages by linking its mobile network with WiFi for even wider coverage.

International cable TV, broadband and telephone business Liberty Global is acquiring Virgin Media in the UK. Virgin Media itself was created from a merger, when NTL and Telewest joined with Virgin Mobile in 2006.

The new combined business will reach 47 million homes, covering 25 million people across 14 countries.