I was a holdout until today. So the presser had made me feel better about the Apple Attitude, and a few friends and acquaintances had 4's that had only minor antenna issues - hardly reproducible. Then on a whim, I stopped at a Walmart today and found a single, solitary 16GB lurking. I snatched it up and have been playing with it all day. Long story short, it's an iPhone. The display is nicer than its predecessors. I can make the "grip of death" work if I try hard enough. The prox sensor seems fine. No colored spots or other problems so far. It doesn't seem spectacularly different from my 3GS, although the camera does take nicer pix. So I can't fully agree with either the doomcriers or the uber-enthusiasts. But for all you holdouts, my experience says if you live in an area with decent signal, chances are decent that you'll be fine with iPhone 4.
Just thought I'd throw in an update. I noticed yesterday at work, where the available 3G signal is weaker than it is at home, that I can hold the naked phone in my right hand, using what I'd call a normal grip, and watch signal bars drop and web sites stop in the process of loading. If I remove my pinky from the join, the web sites immediately resume loading and the signal strength bars increase. I sat there and did this over and over, using different web sites and clearing the browser cache regularly. I was even able to keep my finger on the join long enough to cause the iPhone to display "Safari was unable to load the web page because it is not connected to the Internet...", etc. Lift the pinky, hit refresh, site loads. I cannot make this happen at home, and if I use a case, I can't make it happen anywhere. My conclusion, as an amplification of what has been said many times before: Under the right signal circumstances, the "death grip" can consist of simply covering the lower left side antenna join. iPhone 4 has a definite antenna problem, and I'd bet money that it affects every single one of them. Some people just have not seen it yet. Use a case, no problem.
