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This is what I noticed

Here's what happened. I started the convo, placed it on my ipod stand so my hand didn't get tired. Picked it up and ended the convo and noticed how warm the ipod got from the convo. It wasn't like burning hot but it was significantly warm. I thought that was rather unusual.
 
It isn't just facetime it gets hot when you use it for a while on an app or pretty much anything that involves keeping it on and working. It just wat iPod touchs do. I used mine a lot the past 2 days and it can get hot but it just working hard.
 
I noticed this issue too

back top half was very hot..

it was too hot to burn my hand but.. still I could feel the heat

but only when I use face time for long period of time
 
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