Yes - took this picture today. Autofocus was nice (not ultrafast, but it nailed the nervous butterfly) and i used the maximum zoom with nokia camera app and 5mpx + DNG setting. Set the ISO to 100.
This is from the DNG cropped to the dimensions like the 5mpix and slightly edited with Lightroom.
This is the original 5MPx-Picture - White Balance is not as nice and the denoise-filter is stronger so you'll lose some details as seen on the following pictures:
LR 5.6
Cropped from the original JPG
Overall you can get nice pictures from the JPG-Engine, but especially the white-balance sometime is not as reliable as i want it to be. So 5Mpix+DNG is a nice option. But remember, you're shooting with a Smartphone-cam, so you can not push your pictures like with a DSLR.