O2 has announced that the newly unveiled iPhone 3G will be coming to the UK and Ireland on 11 July.

As with the original device, the newest incarnation of Apple's iconic phone will be available in the UK through O2 and Carphone Warehouse.

"The iPhone has been a phenomenal success for us," said Matthew Key, chairman and chief executive at O2 owner Telefónica Europe.

The 8GB model will cost £99 on a new £30 a month tariff and the existing £35 per month tariff. Consumers choosing either the £45 or £75 per month tariffs will get the 8GB iPhone 3G for free.

The 16GB iPhone 3G will cost £159 on the £30 and £35 tariffs, £59 on the £45 tariff and is free on the £75 tariff.

Apple's phone will also be available on current O2 business tariffs as a monthly bolt on. The device will be available for free on the majority of business tariffs on a 24-month or 36-month contract.

Existing iPhone customers will be able to upgrade to the new iPhone 3G regardless of where they are in their contract, but will have to commit to another 18 months.

Orange will release the iPhone 3G in Austria, Portugal and Switzerland on 11 July and in France on 17 July.

T-Mobile has revealed that the new phone will be available in Austria, Germany and the Netherlands on 11 July, and in Croatia, the Czech Republic, Hungary, Poland and Slovakia later this year.