Apple has confirmed that the new iPhone 3.0 operating system will be available for iPhone 3G and iPhone users from 17 June.

The new OS update will be free to all users, however as previously revealed, it will cost £5.99 in the UK and $9.99 in the US for iPod touch customers.

First announced in March, customers who download the new OS will gain a number of new features bringing the phone in line with competing brands on the market from Palm to BlackBerry.

However not all the new features will be available to all users, AT&T in the US won't be offering MMS messaging in the US until later in the summer, while only 22 of the 42 operators currently offering the Apple handset will be offering the tethering service that allows users to connect a laptop to the iPhone to surf from their computer rather than on the phone.