On the back of the board:

Broadcom BCM4329 802.11n Wi-Fi, Bluetooth 2.1, and FM Tuner

Wolfson Microelectronics WM8994 Audio CODEC

Skyworks SKY77460 WCDMA/HSPA+ Power Amplifier

ST Ericsson RF5000 Radio Transceiver (part of THOR M570 chipset)

Skyworks SKY77544 TX-RX Front End Module

Skyworks SKY77447 Load Insensitive Power Amplifier for WCDMA / HSDPA / HSUPA / HSPA+ Band II

An ultra high-res version of this picture can be seen here.