No luck here, at all. I'm known for massively long and thoroughly redundant posts but, I'm keeping it short and sweet: I installed iOS 4.0.1 about 45 minutes ago on my iPhone 4, that problematic bastard of mine that I've had since June 23rd. I duplicated the same in-my-apartment tests I did weeks ago and then stepped out on my balcony where I'm line-of-sight with an AT&T cell site/tower here in downtown Las Vegas and... well... Nothing has changed, except for having "bigger bars" I suppose. The phone still dies when I touch the now-infamous seam, and I haven't seen anything else indicating any improvement in reception or signal quality. I could care less about the rest of whatever they tossed into this meager update, to be honest. Not much else to say but "Ok, Apple, now you've really got some work to do."