List-A-Wish

A more serious take on a wishlist for Facebook.
Created with minimum clutter and absolutely no flash. List-A-Wish will let you filter who is allowed to view your wishlist. You can set up dates that your friends can mark wishes for and when a wish has been marked, it is faded to prevent two of your friends from buying you the same present.
It allows for anonymous comments on wishes in case the giver needs more information, but does not want to let you know that you will be getting it from him/her.
And of course, it also lets you share your wishes with ease.
Many more features to come, so check it out.

http://apps.facebook.com/listawish/