I took a no-flash handheld low light picture with each of two cameras (my '08 Canon SD890IS and a new Panasonic Lumix ZS6) a couple days ago and noticed a big difference in what each camera did with the scene. I didn't do any tweaking of the camera settings - just turned off the flash and did a point, frame, and shoot. The SD890IS that is no longer focusing consistently when zoomed took the picture represented by the first two attachments. The first is the original photo resized to 1024 x 768 and the second is a 1024 x 768 pixel-for-pixel crop.
I don't have the ZS6's photo with me at the moment but will try to post it tonight. My hope is that my next pocketable camera will be able to take non-flashed handheld pictures about as well as this one by the SD890IS.