I agree that GPS and camera should work as advertised on smart-phone. but I'm also on the camp that they are secondary functions of phone. Major functions would be calling, texting, emails, SNS, web browsing, weather apps, etc.
For camera, though it has advanced enough to use it for occasional close up shots and landscapes, it doesn't really replace my digital cameras when I want to be serious about capturing memories, scenes. First of all, it lacks optical zoom and has only digital zoom that hurts image quality. Sensor and lens aperture sizes are too small to use it for dim indoors.
Regarding GPS, it's probably closer to stand alone device than its camera. But still GPS device like Garmin, Magellan is faster, more accurate and provides more features. Stand alone GPS device has specially designed GPS reception antenna/radio that's better than the ones in cramped smart-phone relying assistance from wireless cell tower. I don't know. Maybe someday it will catch up enough to make stand alone GPS devices disappear, but it's not there yet. Battery drain is another issue for GPS in phone. Even when plugged to car charger, it seems to lose power rather than re-charging.
