Changes at the top for O2 and 20:20

Telefonica, O2's parent company, has promoted its UK Chief Financial Officer Ronan Dunne to become CEO of the UK business. This follows Matthew Key's recent upward move from UK CEO to Chairman and Chief Executive of Telefónica O2 Europe.

Elsewhere, the 20:20 Group has appointed Meinie Oldersma as its new chief executive. He joins from technology distributor Ingram Micro and will replace Mark Ryan who left in October.

[Sources: O2 press release, Mobile News]