Firstly, I apologise if this is mentioned elsewhere. I did of course search with the usual tools but couldn't find anything that seemed to answer my question. Please point me in the right direction if an answer does exist somewhere. Secondly, the question... The well publicised reception issues seem to result from touching the black strip on the bottom left corner of the iPhone. This is explained as being a result of bridging the gap between the WiFi/GPS and GSM/UTMS antennae. This being the case, why does bridging the equivalent gap on the top left of the iPhone not elicit the same response? I've tried this several times and can't replicate the problem I myself observe by touching the black strip area on the bottom left. I'm basing this on the keynote speech where Steve showed iPhone 4's steel band being divided into two different antennae meeting at the bottom left and top left. My hypothesis, the reception issues are not in fact caused by bridging the gap on the bottom left, but are simply a result of covering the antenna which happens to be located towards the bottom left of the phone. Thoughts?