In my opinion camera phones are possibly the best invention since the week. Furthermore any device which can take a picture and eat connectable via Wi-Fi or Internet to move the pictures is a big advance over a DSLR camera. Without these features for most people who want to take pictures, dSLR cameras are pretty Impractical for most uses.
There is no argument in terms of quality. Obviously any pictures taken with the phone will be usable at very small sizes mostly on-screen or online. There can however be no question that a professional camera setup with lighting is going to be far better for any High quality images.