What is Geeklog 2?
From GeeklogWiki
Geeklog 2 (GL2) is a kernel that provides application services to modules that run within its environment. This is the successor to the Geeklog 1.3.x codebase.
GL2 is a complete rewrite which was deemed necessary to overcome design contraints of Geeklog 1.3.x that prevent Geeklog from being customized to the degree that it's growing userbase demands. Geeklog 2 is still in it's infancy and provides a tremendous opportunity for others to get involved in cutting edge PHP development.