You are welcome folks!
Richard, I will surely do a brief image quality comparison of the GXR A12 28 and GR. I just need to finish some things in next two weeks
BTW, in case you are interested, I tried the GR also with the Olympus TCON-14 lens (1.4x magnification). Sadly, as with previous cameras I tried this lens, it's not very useful with GR. Center sharpness appears to be much better than in case of GR+GT-1, but it exhibits heavy dark corners affecting major part of image. Dark corners are clearly visible even in 1:1 crop mode. It's apparently not build for wide angle lenses
You can find full res photos here: