Phones are great for everyday daytime snapshots but there are still all sorts of areas in which even the best phone cameras fall apart: they suck at telephoto, they suck at wide-angle, and they are still very limited when it comes to getting good low-light detail and macro shots.<p>I'm still happy with my many-years-old Canon Rebel dSLR despite all the recent advancements in the digital camera space, but there's no way I'd give it up for just a camera phone.
I used to own a nice, expensive Nikon SLR, with a range of lenses. Later I bought a middle of the road digital camera. Shortly after I bought my first smartphone with a "decent" camera I realized I'd <i>never</i> pay for a "real" camera again, unless I got serious about photography again. I've taken more (and better!) photos sine I got my phone than I had in the previous decade. Hands down, having an "OK" camera with you at all times trumps having a nice camera at home.
I leave my compact Fuji in my bag. I call it my "portable photocopier"; in addition to taking "normal" pictures, it's great for keeping a copy of various documents, articles, and such that cross my workday/path when I am on the run.<p>When I upgrade my phone, I'll probably be able to leave it behind -- although some of those documents I might not want on an Internet-connected phone. (OTOH, WRT physical access, the Fuji does not have a security code / password.)