I just got one of those Panasonic plasma units as well; the image quality(after adjustment of settings) so far as contrast linearity, tonal reproduction and black level is not far from a high quality CRT, so close in fact, that the difference is irrelevant, IMO. I have noticed, however, that the Panasonic sharpening system does not seem as effective as that used by Samsung's latest units, for example. The Panasonic sharpening system seems to create more pronounced halos around high contrast subjects, as well as result in some sort of plastic/clay-looking effect on human faces, if you use the sharpening on default levels. In comparison, the latest Samsung plasma examples appear to be able to adjust the sharpening system more agressively without the same severity of negative effects on the image quality.
-Chris