I had the opportunity to shoot with a prototype of the Panasonic G1 yesterday, at an international press even here in Cologne, Germany. Because the cameras we were using had firmware that's still far from final, Panasonic asked us not to share full-resolution images from them yet. VGA-resolution images (all we're permitted to show) don't show anything about resolution or noise levels, but I decided to post them to our Panasonic G1 page for two reasons:
1) They do show something of the Panasonic G1's white balance capability, which seems to be excellent. It handled some tricky mixed lighting very well, and delivered very natural-looking color under a wide variety of light conditions, all while shooting with Auto white balance. I find myself perpetually frustrated by the poor performance of most auto white balance algorithms, even on very high-end cameras. Final judgement will obviously have to wait for a production sample of the G1 and (much) more controlled tests, but I was quite impressed by the prototype's ability to deliver very natural-looking color, even when faced with difficult mixed lighting.
2) A lot of the shots were taken at the development facility for the Panasonic-Toyota Formula One racing team. Since photos are almost never allowed inside F1 facilities, these may be of more interest to Formula One fans than the fact that they were shot with a G1. ;-)
To see VGA-resolution copies of some of my shots with the G1, check out our Panasonic G1 Preview, particularly the Samples tab.