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iPod touch iPod Touch Aluminum?
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It's still steel. The wifi antenna is likely hidden in the bezel around the rear camera like it was in the iPhone 3GS I believe
No, the back is still made of stainless steel. As for the wifi antenna... good question. 
http://www.apple.com/ipodtouch/design/
http://www.apple.com/ipodtouch/design/
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Well, if that were possible there would be no need for the antenna bands on the iPhone 4. The back was plastic on the 3GS, so the signal could transmit.
Although the iPhone 4 has two discrete antennas: one for wifi and one for cellular, which is why the band is needed to separate the two. Since the iPod has but one antenna, maybe Apple was able to use the stainless steel backing as an integrated antenna.
iPod touch has an all-new design that makes it the thinnest, lightest, most amazing iPod touch ever. Holding one is all the proof you need. With its curved design, iPod touch is now a mere 7.2 millimeters thin. Its engineered glass front and stainless steel back feel sleek and smooth in your hand. Turn it on, and you're instantly blown away by the brilliant Retina display. iPod touch is the perfect combination of stunning design and revolutionary technology brilliant from the outside in.
http://www.apple.com/ipodtouch/design/
On the subject of the Wi Fi antenna, it's possible they've found a way to integrate it into, say, the sleep and volume buttons, so they act as the area where the signal can get into the device properly (not as an actual antenna like in the iPhone 4, but more a mere cover to let the signal in, like the oval cover on previous touches). That would explain why the sleep button has been moved to the right-hand side like on the iPhone; so if you happen to use the volume buttons a lot it can still get into the device. Just a theory.
If you look at the pictures there also appears to be a seam around the entire device in the backplate, just before it curves around to meet the screen, maybe there's a very thin piece of rubber going the entire way around the device squeezed into there.
That... doesn't really say anything that already hasn't been answer in this topic.
If you look at the pictures there also appears to be a seam around the entire device in the backplate, just before it curves around to meet the screen, maybe there's a very thin piece of rubber going the entire way around the device squeezed into there.
That... doesn't really say anything that already hasn't been answer in this topic.
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if you look at the teardown link
you can see that the wifi antenna is in the top right corner (as you look at it from the back) (NOT the same side as the camera and it doesn't extend down to the volume buttons) this pic shows the antenna unclipped and in its correct position
so that's where the antenna is, I guess we will find out tomorrow if it does cause any problems
you can see that the wifi antenna is in the top right corner (as you look at it from the back) (NOT the same side as the camera and it doesn't extend down to the volume buttons) this pic shows the antenna unclipped and in its correct position
so that's where the antenna is, I guess we will find out tomorrow if it does cause any problems