The best camera is one of the best features that anyone expects from a highend phone. A high quality pic from a high end phone gets more attention on facebook and social media. Camera sales remain healthy inspite of mobile penetration in this segment.
Iphone is the most used device for posting pics to social sites.
Some of the good shooters are
HTC ONE X
Samsung galaxy S3
Nokia Pureview 808 ** good one..
Sony Xperia S *12Mp cam
Appe Iphone 4S
we can use accessories like PhotoJOJO fisheye. its a magnetic ring to the phone photo cam.we can shoot subjects with in 10-23cm.. price is around 2.8K INR