Everyone is well aware that when you cover the black stripe on the lower left corner that the signal decreases, as long as you are in a low signal area. What everyone seems to think is that this is due to essentially making a connection between the two silver antennas. Well if this was the case then making any connection between the two antennas would cause the signal to go down. However, touching the upper left and lower right corners with one hand does NOT make the signal go down. Perhaps there is something to Apples claim that this is simply the antennae being covered just like the 3Gs and other makers and not anything to do with bridging the two together? Thus making the antenna design ok and this really is a software issue where the signal is overstated. I have confirmed that I am getting much better performance from my Iphone 4 than I was with my 3Gs as many tech reviews have also stated, but I am in a good coverage area.