Some one pointed this out in a earlier post, then was knocked down by people who said it was the room lighting in the bunny/cactus pictures. If you view the site below with "real world" photos taken on the same date you will clearly see that the LX2 is indeed brighter than the LX3 which is an issue that will prevent me from buying the LX3.
http://www.popco.net/zboard/zboard.php?id=dica_forum_panasonic&page=1&sn1=&divpage=1&sn=off&ss=on&sc=on&select_arrange=headnum&desc=asc&no=2093
http://www.popco.net/zboard/zboard.php?id=dica_forum_panasonic&page=1&sn1=&divpage=1&sn=off&ss=on&sc=on&select_arrange=headnum&desc=asc&no=2093