So apparently Apple is using a 8MP unit from Omnivision in the iPhone 4S. Decided to post a stats summary here, please fill in or correct details as appropriate:
1. Apple iPhone 4S
8MP, Sensor size: 1/3.2, Aperture size: 1/2.4, using BSI
Single LED flash, 1080p recording (with mono sound?)
2. Samsung galaxy S II
8MP, Sensor size: 1/3.2, Aperture: 1/2.8, using BSI
Singlel-LED flash, 1080p recording with mono recording and no continuous autofocus
3. Nokia N8
12MP, Sensor size: 1/1.83, Aperture: 1/2.8
Xenon flash, 720p recording with stereo sound (CAF with update from beta labs)
4. Nokia N9
8MP, Sensor size unknown, expected 1/3.2, Aperture 1/2.2
Dual-LED flash, 720p recording with stereo recording and CAF
5. HTC MyTouch 4G Slide
8MP, Sensor size: 1/3.2, Aperture 1/2.2, using BSI
Dual-LED flash, 1080p recording with CAF and stereo.
6. Xperia Arc
8MP, Sensor Size 1/3.2, Aperture 1/2.4, using BSI
Single LED flash, 720p recording with CAF and stereo sound
Of course there is a ton of other details: speed, image processor, flash range for example but these are the ones that I could find for now.