Powerbook Medic has torn the Kindle Fire HD 8.9 apart for the world to peer inside. It seems Samsung has done well out of the tablet, as it's supplying—at the very least—the display, RAM, and flash memory. The processor is courtesy of Texas Instruments, though.
One weird finding is that the battery is actually a split unit: it uses two separate cells, joined by a battery controller board, to provides its rather weedy 6000MAH 22.2wh power source. That's not particularly common, nor is it obvious why it's been done—space, perhaps.
Elsewhere, the teardown contains lots of nerdish findings, but there's one take-home message worth listening to: the device seems fairly easy to repair, especially the screen. [Powerbook Medic]