I've had my DSLR (a Nikon D3000) for a few months now and have learned a lot about manual photo settings. There is no doubt that it produces vastly superior photos. I took a portrait of my dad that I love so much I had it blown up and framed. It also can't be beaten for low-light photography, of which I'm a big fan (I haven't gotten too far with those skills, but I'm armed with a tripod and I keep trying).
Still? I use my iPhone for most of my photos. The DSLR is giant; I always have my iPhone (as they say, the best camera is the one you have with you). I'm nearly done with my iPhone365 project (set on Flickr), and although I have taken some serious crap photos, I've also taken some seriously cool ones. Wouldn't have happened had I embarked on a DSLR365 project. I'm so not taking that thing everywhere.
It also turns out that I am actually drawn more to snapshots, hip shots, and lomo photography than I am to technically good photography. There's no accounting for taste. I just flat-out like taking snapshots and messing with them until they look weird and/or cool. I feel like I'm admitting to a preference for Cheetos over fine dining, but there you are. When I was a kid I liked those cheap plastic cameras and would have gone through film like crazy if my parents hadn't refused. Maybe it's true that you can't give a pig a strawberry (you can; I've done it...I just like the saying).
I'm glad to have the DSLR, and it's a good idea to learn how to use a "real" camera (film enthusiasts, please don't hurt me). I just still think there's a lot to be said for crappy cameras. They make you learn to find good shots, I think. They force creativity. Yet I'm reading Understanding Exposure (a PAPER book, people) and making a real effort to get good at DSLR photography.
It will be interesting to see how the new iPhone model changes iPhone photography. The specs are close to those of my point and shoot, yet I fear the flash. I hope the photos don't come out looking like Blackberry photos with the harsh flash glow spots. I know. Normal people are not afraid of their new phones because of the improved camera, yet I am NOT normal, and I like my 3GS camera. Stay tuned for opinions. I've always got some.