Good news for all the O2 customers out there who have been trying to get their hands on a new Micro SIM card for the iPhone 4, as we have just checked with a number of O2 stores throughout the UK and ...

UK mobile operator O2 is to slash international calling charges across its Pay & Go range, allowing its customers to make calls to mobiles and landline numbers from as little as 1p a minute, with ...

Following a tariff overhaul by T-Mobile last month, O2 is the latest network to revamp its monthly contracts. The original home of the iPhone is launching a new SIM-only tariff and updating its ...

A lot of phone networks are offering deals on their SIM-only contracts at the moment, and O2 has joined the long list with an impressive pay-as-you-go SIM-only sale that's on right now. These are some ...