In my test, I only covered the lower-right corner with my thumb and the signal bar started to decreasing immediately. I did not hold the phone in my hand.

This is the only problem with the iPhone 4. It works just like other phones except at A&T in the USA.

I think the real problem is Steve Job's huge, arrogant and thick-skinned face. It was funny for the first time, but now it is boring. And this means Apple does its best, you are only reading about iPhone 4 in every News, and N900 is fading.

And I'am in the EU where Nokia is (was) the leader of the mobile technology area, not Apple. But it is seems to be changing.