As a developer using Version One, I would like to track time that I have worked on tasks in a way that is simple and effortless.

I would love to see on the taskboard a "play" button that would start tracking time against a given task. Once you pressed "play", it would change to a "stop" button. The key part is that it has to be made so simple, that it's harder *not* to do it.

This could be used in conjunction with something like the "Personal Software Process" by Watts Humphrey to iteratively improve time estimations.