Visa will be launching a digital wallet this year, and expects to see half of Europe's transactions being done on a mobile phone by 2020, but plastic cards are looking good too, according to Visa Europe's Annual Report .

It's no surprise that Visa is planning a 2012 launch; it has already announced that there will be a special Olympic handset with the wallet embedded, but eight years to get half of the 12 billion or so Visa payments onto mobile phones is an aggressive timetable to say the least.

Ofcom has granted BT and Everything Everywhere an extension to their test licence for cohabited LTE spectrum until the end of 2012, much to the relief of the trialists.

The trial, which is testing how effectively LTE can be used to share radio spectrum, was supposed to wind up at the end of January, which would have left the 180 trialists falling back to their sub-1Mb/sec ADSL service, but will now be extended until the end of 2012.

Transport for London (TfL) is in the final stages of the tender process for the supply of Wi-Fi to up to 120 of its underground stations.

The announcement of the chosen bidder had been scheduled for the end of 2011, but is now expected in early spring.

Powell added the contract will be in place "leaving plenty of time for this to be delivered to customers in time for the

Ofcom is laying the groundwork for the London Olympics, outlining plans to borrow radio spectrum, but will be running the event with a fraction of the engineering resource of its Chinese predecessor.

The UK government promised free radio spectrum as part of its bid to host the 2012 Olympics, but has left it up to Ofcom to arrange the details, which include borrowing spectrum from the MoD and pushing into the Digital Dividends, and policing the whole thing with only 32 engineers compared to Beijing's complement of more than 300.