I was pretty sure that I read somewhere that the Bezel and the metal rings around the camera and the headphone jack were connected to the antenna to strengthen the signal. Is this the case? I'll see if I can find the reference.
Yeah, here it is:
More wireless. Less space.
iPhone 3G delivers UMTS, HSDPA, GSM, Wi-Fi, EDGE, GPS, and Bluetooth 2.0 + EDR in one compact device — using only two antennas. Clever iPhone engineering integrates those antennas into a few unexpected places: the metal ring around the camera, the audio jack, the metal screen bezel, and the iPhone circuitry itself. And intelligent iPhone power management technology gives you up to 5 hours of talk time over 3G networks. That’s some of the best in the business.
Here is its location:
http://www.apple.com/iphone/features/wireless.html
Message was edited by: XenoSaber