I’m an avid DL4 user and, like others here, am often amazed what good images that little camera can produce. I use the DL4 as my primary field camera because the subjects I shoot and the conditions I shoot under generally make it impossible to use a DSLR, with all of its size and weight. Plus the need to keep a DSLR protected from weather and other forms of harm slows my ability to get it into action and pointing dogs and wild upland birds do not wait for you to dig out a big, awkward camera and get it working.
That said, I carry a DSLR any time I can because it is far easier to capture good images with even my oldest DSLR body than with the DL4; especially under marginal or difficult conditions.
By way of just one example, good as the DL4 is, it cannot do things like shoot 6 or 7 fps in burst mode for as long as I hold down the shutter button as a bird flushes. With the DL4’s very limited and slow burst mode, I have to time things just right and even then I need some luck to get a decent capture of a wild bird’s flush in front of a dog. With the DSLR, the worst that will happen is that I will need to discard a lot of frames to find the perfect shot.
I bought a G1 when they first came out thinking I’d get the capabilities of a DSLR in a camera more or less as portable as a P&S. Wrong. After struggling with it for a few months, I realized that had the worst of both worlds – a camera nearly as difficult to carry as a DSLR and with no where near the capabilities of a DSRL for action-type shooting.
The G1’s poor execution of the concept notwithstanding, I think EVIL’s are the future direction of digital cameras. Picture a camera about the size of a DL4, with an EVF and no mirror box, sealed and ruggedized body, crop-size sensor with no more than 10 MP, a burst rate like today’s DSLR’s and a, f2.8 kit lens with a 28-90mm (equivalent) zoom range. Add the ability to mount other, specialized lenses, like a 50mm (equivalent) f1.4, a super-wide and a few long tele’s. I’d buy one of those in a heartbeat. Then, I might junk the DSLR’s.