Neither one seems to have brushed metal or chrome on the back. I just looked at the gallery of each on the Apple web site. If that's chrome, it's the dullest, least shiny chrome I've ever seen.You sure? From what I saw it looks like the back like the iPhone. Brushed.
Looking at those pics I would have to say.......yeah they have the chrome backing of the iPods.I think its the shiny chrome, like 5G iPods. Check the pic from engadget: http://www.engadget.com/photos/ipod-touch-first-hands-on/382897/
edit - you can see it here too: http://images.appleinsider.com/apple-ipod-event-07-18.jpg
Once nice thing from iPhone they didn't give to iPod touch. Those chrome backs scratch sooo easily. The iPhone backs scratch too, but not like iPods, thank God. Much easier to keep the device looking new.
i'm talking about the border, not the back. sorry I didn't clarifyI think the OP is talking about the chrome border of the iPhone.
The iPod touch do not have a "border", what you see is the light on the light bezel. The back of the iPhone touch is the regular iPod chrome.