I just dropped my iPhone on a concrete floor and the bottom part of the screen is no longer touch sensitive. So the Phone, Mail, Safari and iPod are just pretty icons that do nothing now I tried some app which apparently increases the sensitivity of touch and set it to maximum, but still no response from the bottom part of the screen!! Now for the worst part... it was bought about a year ago and unlocked, so it is out of warranty and apple wont listen! Anyone has any idea if this is fixable? Of should I start using it as paper weight?