It would be great to be able to work with two or more people (=two licenses) on the same projects/lists, ideally with independent timers and being able to edit the tasks. For me this would not have to be too complicated, just being able to see them, edit them and start my own timer that adds to the sum of actual time would be enough. Anything on top of that (seeing individual time tracked, being able to delegate etc) would be a bonus, but just sharing/editing and tracking would be amaze!