Had to pull my iPhone 4 apart to replace my water damaged mic/home button connection, so I thought I'd do a little mod at the same time. A few months ago, I polished the antenna to a chrome-like finish (it was heavily scratched from not cleaning my TPU case) but I never liked it as much as I thought I would. I unscrewed the volume buttons while I was replacing the dock connector cable (those round buttons are NOT easy to get around) and went to town with a Scotch-brite green pad, as seen here and previously done on my iPhone 3G:
https://forums.macrumors.com/threads/332434/
My camera takes pretty miserable pictures, hopefully anyone that has wondered has an idea of how a brushed iPhone 4 looks though.
https://forums.macrumors.com/threads/332434/



My camera takes pretty miserable pictures, hopefully anyone that has wondered has an idea of how a brushed iPhone 4 looks though.