Apple iPhone 4: UK availability from June 24
Vodafone, O2 and Orange will join Carphone Warehouse and Phones 4u in selling Apple's new iPhone 4 - but details of pricing have yet to be released
Apple’s iPhone 4 will launch in Britain on June 24, the same day as it also goes on sale in America, France, Germany and Japan. Details about pricing, however, have not yet been confirmed, but Vodafone, Orange, O2, Phones 4 U and Carphone Warehouse have all said that they will be selling the device.
iPhone 4 will roll out worldwide to 88 countries by the end of September. iPhone 4 will be available by the end of July in Australia, Austria, Belgium, Canada, Denmark, Finland, Hong Kong, Ireland, Italy, Luxembourg, Netherlands, Norway, New Zealand, Singapore, South Korea, Spain, Sweden and Switzerland.
Im not too sure but its a possibility to use it in Italy when it comes out. Maybe depends on their coverage and your plan.