If you can't tell, I am no where near professional. My weapon of choice is my phone, an iPhone 2G. Favorite app: Toy Camera, it does wonderful work. I have no reason to carry a large camera around, since i'm not the DSLR (is that right?) type. If i had to characterize my style, it would be "frantic random." I don't even look at the phone most of the time, as you can tell.
Enjoy