And you don't seem to grasp that you can't take a measurement of something using two completely different devices and then have issues with the disparate nature of the results such as you would with the signal being measured by two different phones. The effective power/signal levels may be relatively "close enough" but because the two devices making the measurements aren't the same, the end result means it's irrelevant. Maybe you do get it, I don't know - I think we're both saying the same things here in many respects.
I'd try that Anand hack on my iPhone 4 and see if I could enable the numeric signal strength reading; unfortunately I don't have a 3GS so I can do the mods to it after rolling it back to 3.1.3 and then Jailbreaking it and making the configuration backup to apply to the iPhone 4.
Hrmmm... maybe I can find someone with a 3GS I can borrow overnight. I live line-of-sight with an AT&T cell site/tower, only about 750 feet away and about 20 feet higher than my 3rd floor balcony. Pretty sure at this distance and with zero obstructions to the signal off the antenna array I'd be getting around -55 dB as expected.
I get what you're saying, I do, really, and I'm not harping on it - it's just that the antenna design on the iPhone 4 and the new radios in it are going to make all the difference this time out, as well as how the radios are handling the attenuation because of the metal antenna band which I feel is the biggest mistake Apple has yet made with respect to their iPhones.
If I'm proven wrong in the long run, oh well... I don't believe that I'm wrong, and lots of people believe the new design is flawed as well.
I think we're pretty close in our thinking here, for the most part. I also agree with you that making the outer metal band the antenna was a bad decision, especially since they're saying that this is how the phone was designed and it's supposed be held differently. They were going for improved signal, and while they technically seem to have done that, unfortunately it's only an improved signal when it's not being held directly by a human