The screwdriver-happy mavens over at iFixit.com have taken it upon themselves to disassemble the iPod Nano 4g and the iPod Touch 2g announced at Tuesday's Let's Rock event.

Take-aparts are always cool, but the dissection of the iPod Touch 2g is especially interesting because it reveals that the device actually has an on-board Bluetooth chip! Although this is likely what is powering the built-in Nike+ support, this particular chipset supports EDR and -- if we're really lucky -- could potentially support A2DP for wireless stereo headphones.

On the Nano's side, the new glass screen is separate from the metal casing. The battery is soldered into the logic board, which makes replacement probably more trouble (and more expensive) than it is worth. The processor is an Apple-branded Samsung ARM chip. And although his Steve-ness went on about how the newest Nano is the thinnest iPod ever, we're talking micrometers when stacked up with the original and second generation Nano. Still, thin is in!

Read through both of iFixit's guides for more details at the interior and take-apart instructions in the event of a self-repair emergency.

[via Register Hardware]