iPhone 4 antenna problem and the reason it may have not been discovered before

We all know about the the iPhone 4 antenna failure by now but I did some thinking and thought of a reason why the idea wasn’t found before the public release. This falls back to the the lost iPhone 4 that was found in a iPhone 3GS case.

The issue is that the field testing was done with the new iPhone in a case that was meant to hide the design due to their secrecy. The result of this testing was that they didn’t hold the device with their hands briding the gap that causes the signal failure.

Here take a look at the famous leaked iPhone 4 in it’s case to see what i mean:

What are your thoughts?