I do not own and Iphone 4 (yet, but soon depending on what happens with this issue) but after reading the reports of the reception problem I can understand what the problem is. It is a simple miss match of antenna. I am to understand that the 2 aerials used by the phone, WiFi and cellular, are incorporated in the metal around the edge of the phone and are separated by the thin black strips, one on the top and the important one on the left bottom corner. When your hand comes into contact with the bottom left corner your hand is effectively joining the 2 aerials together, because it conducts, and therefore causing a miss match with the antenna, just like the VSWR being out of range on the old CB radio equipment.
Someone with an iPhone 4 can help me out here by testing this theory by putting a pair of rubber gloves on and putting their hands on the bottom corner and see if the drop in signal is as dramatic as it is without the gloves. You will, as Steve Jobs says, lose some signal by covering the antenna in any way but see if it isn't as bad as with your bare hand. I am interested in your findings.
If I am right the only real way to cure this problem would be to put a non conducting coating around the edge of the phone, or bumper, or change the design to put the antenna/casing joints (thin black strips) on the bottom and top of the phone, where nobody touches when using the phone.
Let me know what you think and, Steve Jobs, if you're reading this and think I have a good point and maybe I'm right I am open for a job if you have one for me, I'm fed up of being self employed and not appreciated.
Just thought of another little test to prove my point.
Are you listening Steve Jobs!!!
On the top of the iPhone 4 there is another little black strip, which separates the 2 antenna's, try putting your bare hand across that and press hard like you would grip your phone on the side and see if it does the same because in theory you are still joining the 2 antenna together.
I'm 99% sure this is the problem, please prove me wrong so Apple don't have to redesign the case which would mean me waiting a while to get one.
If you could let me know if my thoughts are right or wrong I would be very grateful. Email me at
dk2002@onetel.com
Thanks
Darren