G1x2 sample gallery on DPreview
Overall the photos look good, no major complaints, although I can say the same thing about an iPhone at base ISO.
However it still shows the typical Canon spider-web effect in tree branches against blue sky. This was one reason I hated my Canon P&S and was glad to replace it with an F200EXR.
This image shows the Panasonic GH2 (from old DCresource sample gallery) side-by-side with the G1X mkII. I prefer the roof color from Canon, but the highlights are slightly clipped, and what's worse, the blue spider-web is apparent. Sky in the Canon shot should be all blue, whereas the Panny shot was taken on a day with cirrus clouds. Click Original for best view.