I saw timeline referenced, and assumed that meant there would be a way to look at a Project or Category and see a date-sorted list or graphic that would show things like number/percent of items marked completed (i.e., checked off) so that I could get a quick view of the status of a Project or Category.
Maybe I’m missing it, but I don’t see a way to do this. It would be a great feature to provide a simple summary of task status in projects. If the calendar integration is supposed to do this, I don’t see a way you could show marked-off tasks in the calendar.