Please correct me if I'm wrong, but there is no option to see work someone has done overall. You can take a look at time tracking for a specific task, but I can't take a look at my profile and see what I've done work on (or what I'm wasting time on).
It would be great if I could check up on myself. I use openGoo to manage my work projects, but I could create some "permanent" tasks like "cleaning", "movie watching", etc and see how much time I waste on these.
I haven't looked into how all this is implemented now, but I'm guessing gathering all task time data would not be hard. it would mean however that if a task gets deleted, the time gets deleted too, but for me this would be ok.
I have to mention at the end of all my forum posts (3 only so far) how awesome OpenGoo is and how it's already THE best solution I've ever seen