I'm glad that Wikisource finally got rid of the iceberg photo. It was never a logo. I always saw it as a placeholder, nothing more. Unfortunately, the stagnant situation was caused, from what I have observed, by a small but vocal group of users who know very little about design or identity, but who "liked" the iceberg photo and fought tooth and nail to defend it. This is apparently the reason why the best that could be done is a stylized version of the very same iceberg. Oh well.
My personal favorite from the contest was Spirit's logo, though its realism also goes a bit far: http://wikisource.org/wiki/Image:Spirit_ws_02.png
Erik