This post sums it up
The hard core apple fans will tell you it isnt a problem, but the reality is that there is a defect in the design of the iPhone4. If you buy the 29.99 bumper case/guard then you wont have a problem. The people that say their iPhone is not affected are exceptions. They are either in an area with a very strong signal, havn't paid attention to it, or simple in denial.
I am about the buy the HTC Aria instead of this version of the iPhone.
Having an external antenna where you can touch it is a poor design. No way around that. Big signal drop if you hold it especially on the left side bridging the two antennas. If you're in a strong signal area, it may not affect you. Bumper should help the major part of the problem. There seems to be another variable at work, possibly the cell frequency used at particular locations, that determines if the problem is severe or not.
I find it upsetting that Apple would produce their flagship product with such a defect. I'd wait until Apple redesigns it. I'd rather not encourage Apple to produce products with problems like this.
The hard core apple fans will tell you it isnt a problem, but the reality is that there is a defect in the design of the iPhone4. If you buy the 29.99 bumper case/guard then you wont have a problem. The people that say their iPhone is not affected are exceptions. They are either in an area with a very strong signal, havn't paid attention to it, or simple in denial.
I am about the buy the HTC Aria instead of this version of the iPhone.