one note replacement for the mac

Current favourite

http://www.evernote.com/about/what_is_en/tour/windows.php

other contenders

http://www.devon-technologies.com/products/devonnote/index.html

http://www.circusponies.com/store/index.php?main_page=notebook&sub=publish

http://www.omnigroup.com/applications/omnioutliner/pro/

http://www.journler.com/

http://flyingmeat.com/voodoopad/