O2 have just announced that it will be stocking one of this year’s must have Christmas presents – the Sony PlayStation 4®. Available as part of a bundle combining the latest in gaming and mobile technology, the console will available for both new and existing customers on O2’s revolutionary O2 Refresh tariff. “Our bundle brings together the best of gaming and mobile this Christmas,” said David Johnson, General Manager Devices for O2 in the UK. “We know our customers love to play and now they can enjoy brilliant gaming with O2, whether they’re at home or on the go. And with our O2 Refresh tariffs getting into the game is…