So my dad received his iPhone 4 today. It is a week 28 from what I can tell (88028). I've had my iPhone 4 since day 0 (June 23rd) and it is a week 25 (85025). I had a few minutes earlier tonight to put them side by side and compare them, and what I noticed was that the steel band on the week 28 iPhone 4 was MUCH smoother than that of the week 25 iPhone 4, ALMOST the same feeling as touching the glass. Almost like the glass, not exactly the same though. At first I thought it was just my mind playing tricks on me because that is an observation I would have liked to see (it could mean that Apple is doing a better job coating the band), but I felt them both over and over, in different hands, different fingers, and I'm positive that they both feel different. I even washed my hands with soap and applied some Purell and re-felt them both, noticing the same result. So I don't know what to really make of this, except to think that Apple may have started taking some extra measures to coat the band. But I just thought I'd share. Besides this everything else is the same, except for the volume buttons, which are rock solid on the week 28 phone but kinda loose on the week 25 one. What do you guys think we can make of this? Anyone else have to different iPhone 4s from different weeks to compare? I get pretty good signal in my house, so I didn't bother doing the death grip test since the bars won't drop in my house. I'll post back if I get to take both phones with me to a different location to test them out. This is it for now.