Apple's iPhone 3G is now the second best-selling mobile handset in the US, just behind the Motorola Razr 3, NPD Group announced this morning.
Researchers also confirmed that one in three iPhone 3G purchasers switched from other carriers to join AT&T, suggesting that network's subscriber numbers will have seen a hefty bump - particularly as it now seems extremely likely Apple has exceeded its stated sales targets for the device.
Returning to NPD, they claim by way of comparison just 23 per cent of consumers, on a
