I don't know why people are excited about the iPhone 4s camera. There is a MUCH more potent mobile phone camera that's already 1.5 years old in the Nokia N8.
The N8's sensor is HUGE compared to the 4s. 1/1.83 vs 1/3.2
N8 has built in ND filters, 4s does not (so it can handle very bright situations better)
N8 has Zeiss designed optics, 4s does not.
N8 has 12MP vs 8MP of the 4s, giving a better digital zoom potential
N8 has a REAL XENON FLASH. None of this fake LED crap. Same kind of flash you'd see on a real camera.
N8 Video captures STEREO sound and has realtime digital zoom that works VERY well.
The 4s camera doesn't even look remotely interesting in comparison to the 1.5 year old N8's camera.
The N8 IS REALLY a phone that makes this camera nerd feel like I can leave my camera at home. The flash really brings it to the next level... it will get a clear, crisp shot of your subject in a dark cave. Even serious filmmakers have taken notice of the N8 for their personal cameras.
Even these pro commercial photographers were blown away: