The primary IC diagram can be found here.
Notably, this device runs on the Qualcomm 6800A and Marvell PXA312. These devices are connected via a Cypress Dual-Port bridge and have separate Power Management Devices. Note that this PCB is impressively packed and impressively small! Another thing to point out is the presence of an SMSC USB PHY. We’ve seen these devices on a variety phones we’ve ripped apart.
Bluetooth goes to CSR and Wi-Fi to Marvell. The GPS win goes to Avago. Note the massive quintplexer!