But it's still... more. For every 100 calls, the iPhone 4 is dropping less than 1 more call than the 3Gs. So, to make things easy to count, lets say it's exactly one more call. If the 3Gs drops 3 calls every 100 calls, the iPhone 4 is dropping 4 calls. That would be 3% compared to 4%. An increase, but not a huge increase. But it could be 10% compared to 11%. Use whatever figure you like. But anyway you slice it, it's not much of an increase.
What happens when people have cases and bumpers for the i4? Will the rate go down? We'll have to wait and see. But as the guy in the song said, if you don't want an iPhone 4, don't buy it. If you bought one and don't like it, take it back.