You lost me. AT&T's data, according to Jobs, suggests the iPhone 4 drops one additional call per hundred when compared to the 3GS.

"It means that if the 3GS drops 1% of calls, the iPhone 4 drops 1.01% of calls."

"If the 3GS drops 1% of calls", it drops one call per hundred.

That means the iPhone 4 drops two calls per hundred, or 2% of one hundred calls. Not 1.01%.