The fine folks of iFixit, as per usual, have torn apart Apple's latest iPod Touch revealing some interesting things. Firstly, the latest Broadcom BCM4329 makes the device capable of N speed Wifi unlike any other iPod or iPhone.
Secondly, the ARM chip is different Samsung ARM chip than the iPhone 3GS or any Apple device before it.
The most revealing part is a little empty space for a video camera like the one in the iPod Nano camera. If your not too skittish of the innards of the of whats inside check more pics here and here.