The iPhone and its photographic capabilities may have a lot of critics but as a candid street photography camera I think its pretty darn good.
The ability to take a photo in the blink of an eye is just one benefit to using a mobile phone as a image capturing device. The small size of a phone also helps you avoid attention. Critical when shooting candid street photos.
OK, the iPhone & other mobile phones are never going to replace the Nikons and Canons of this world but as a separate tool for capturing images quickly and quietly it’s ideal.