Here are some test results from a Swedish company showing that the 3G antenna performs normally in transmission power and received signal compared to Nokia N73 and Sony Ericsson P1. TIS is the phone's ability to receive low signals from the tower; TRP is the power transmitted to the tower from the phone. The values are completely normal, says Magnus Franzén, an antenna engineer with an M.Sc. in Engineering Physics. We compare the results with those of a Sony Ericsson P1 belonging to Bluetest's CEO Mats Andersson, and my Nokia N73. The P1 is a little better at receiving signals and the N73 a little better at transmitting signals. But the difference is small. The difference between the iphone's and the P1's receive sensitivity is 2 dB. - It is not much. At a difference of 4-6 dB one might start to wonder if there is anything wrong, says Mats Andersson. Full article here: Iphone 3G antenna test - null - Göteborgs-Posten See the article for a nice picture of the test chamber.