The headphone jack and one of the many wireless antennas come out as a single unit. Bummer.

Well hello there! Fancy to meet you here iSight camera.

You have what specs? Oh, a 5 element lens, an IR filter, and auto exposure. Stop it iSight, you're making us blush...

UPDATE: Chipworks found out that the primary camera is indeed the same image sensor Apple used on the iPhone 4: Omnivision OV5650, 1.75 um pixel pitch, 5 MP back illuminated CMOS Image Sensor.

The secondary image sensor is also an Omnivision, the OV297AA. 0.3 Mp, 3.0 um pixel pitch CMOS Image Sensor