Apple said that its latest model of iPhone will become available in more than a dozen additional countries starting this Friday. Apple Inc. has already sold more than 3 million iPhone 4 smartphones since its launch which was a month ago. Earlier iPhone 4 was available only in US, Britain, France, Germany and Japan. In US the cost of this smartphone is $199 for 16GB model and $299 for 32GB model.

From 30th of July, iPhone 4 will be available for sale in Australia, Austria, Belgium, Canada, Denmark, Finland, Hong Kong, Ireland, Italy, Luxembourg, Netherlands, Norway, New Zealand, Singapore, Spain, Sweden and Switzerland. The issue on wrong indication of Signal strength in the iPhone 4 is being corrected by providing bumpers which were made available through an application that can be downloaded to iPhones from Cupertino. Also the bumper which fits around the sides of the iPhone will be available for free to all the buyers of iPhone 4 smartphones through the end of September.