Habari: a new PHP5-only, object-oriented and PDO driven blogging tool. Well, everyone has written a blogging tool or two, but I think what differentiates Habari is the momentum behind it -- well known names like Michael Heilemann, Chris Davis, Scott Merrill and Khaled Abou Alfa (i.e. many WordPress contributors) were amongst the developers. I guess sometimes the easiest way to improve something is by starting from scratch, and I have no doubt that it is the app to watch out for in 2007. Whether we need another blogging tool is another thing, and I think I am agreeing with Dries Buytaert here, that a new open source CMS -- a Community/Collaboration Management System -- would be more interesting.