I worked a lot on this project during my time @ Defacto Software. It started out of frustrations with the time tracking application they used at the time, Jurre, Matthijs and Hugo came up with this idea.
It was an extremely fun project to work on and it was picked up by a lot of people in the Rails community. This project is also where i gained so much Rails experience and launched my adventure into open source development.
Preview
See a live version of Hours hosted on Heroku by Defacto.