I don't EDC a camera, but I very, very often have a camera nearby. I love my Nikon D70 DSLR and bag o' lenses, but it's definitely not pocketable.
As much as I like Nikon DSLR's, I've not been overly impressed with their P&S digicams. I've had a Canon PowerShot S100 2 MPx camera for 6 years and it's still going strong, despite being horribly obsolete. It also has that proprietary battery problem.
I recently bought my daughter and my brother's family Canon PowerShot A550's. Small, light, inexpensive, relatively rugged (a teenager hasn't destroyed it, yet), takes good pictures, and uses AA batteries. Worth looking at.
Kevin B.