I don't actually own one, but I certainly don't have an issue with smartphones as cameras, or even excellent cameras. They are just a tool, a means to an end, and any camera, however clever, is ultimately only as good as the person using it. In the majority of cases that I have seen, that isn't all that good, and in a few cases it is excellent. Just like DSLRs, 35mm, full frame, medium frame, compacts etc, etc.
I have noticed a tendency for smartphone software to render photos oddly, ultra-sharp, almost like a detailed painting. Amar's wheatfield a page or so back is a case in point. I don't like it, but as I say, I suspect the effect is from software rather than the camera/phone itself.