I hadn't used the DP1 in well over a month, mainly due to th E-420. However, I recently forced myself to choose between the two cameras and ended up keeping the DP1, mainly due to it's smaller size.
I took the DP1 on a family trip to the Maryland Science Center on Sunday. Most of the center was pretty dark. I set the shutter speed to 1/50s (I can handhold longer than 1/50s, but the kids rarely stay still longer than that
), ISO 200 pushed the heck of out of the images in post to get them exposed how I wanted them. Here are a few to share, all processed to JPEG in SPP with no PS: