By default, the preview area is divided in two areas, the preview itself and the info area with tabs (e.g. Properties, EXIF, IPTC, Histogram). I think most users want to see the preview and do not care much about the other information. So I wonder whether this simultaneous display of preview and other information is really a good default.
Instead, I think the non-divided preview area with the preview also in a tab is more appropriate. That's just my understanding, discussions can start, now...
