Yahoo! Inc. says Ross Levinsohn has been appointed as interim Chief Executive Officer, replacing Scott Thompson who has left the company.

Fred Amoroso is the new Chairman of the Board of Directors, taking over from Non-Executive Chairman Roy Bostock.

Commercial property management company Land Securities says it plans to offer free WiFi in every one of its 22 shopping centres and 2 outlet centres across the UK through a deal with The Cloud.

It follows the rollout of WiFi at Land Securities’ One New Change and Cabot Circus shopping centres last year.

New research from the Pew Internet & American Life Project has found that 74% of smartphone owners use their phone for real-time location-based information, with 18% using a geo-social service to ‘check in’ or share their location.

Although smartphone ownership among Americans has risen from 35% of adults in 2011 to 46% in 2012, the overall proportion of US adults who use location-based information has increased much faster.

O2 UK has created a new international roaming deal for customers with a ‘pay monthly’ contract. O2 Travel will launch in July 2012, providing customers with fixed charges when they travel in Europe.

Voice calls will use minutes from the customer’s standard tariff allowance with a one-off 50p charge per call. Data usage will be charged at 25MB per day for £1.99.

Telecoms giant Telefónica has published results for the first quarter of 2012, including details of the O2 network run by Telefónica UK.

O2 UK ended the quarter with 22.3 million mobile customers, having seen ‘pay monthly’ contract customers increase by 5% to account for 50% of the total mobile customer base. However quarterly revenue fell by 6% year-on-year to 1,719 million Euro, blamed on a difficult trading environment and mobile termination rate cuts.