I'm surprised that anyone considers this explanation reasonable. The real problem people are seeing with the iPhone 4 is measured in throttled bandwidth and dropped calls, not bars of signal.
Using a speed test app, I measure 2-2.3mbs 3G downline bandwidth with the phone sitting on my desk. Holding it gently in my left hand, the speed test drops to 0 and eventually fails. I can also reproduce that data transfer failure by lightly touching the left and bottom sides with two fingers.
This focus on the displayed signal strength is somewhat insulting misdirection.
Using a speed test app, I measure 2-2.3mbs 3G downline bandwidth with the phone sitting on my desk. Holding it gently in my left hand, the speed test drops to 0 and eventually fails. I can also reproduce that data transfer failure by lightly touching the left and bottom sides with two fingers.
This focus on the displayed signal strength is somewhat insulting misdirection.