Nullboard - Minimalist locally-stored kanban board / task list manager.
Sublime Merge - Fast git client with integrated merge tool from the makers of Sublime Text
Huboard - HuBoard is built from the ground up using the GitHub public API.
GITK - The GITK - Generalized Interface Tool Kit is a set of libraries, which form a (user) interface...
Zube - Project management for developers.
Bit - Easily share reusable components between projects and applications to build faster as a team.