Synchronizing the timesheets with the calendar

I have used other tools akin to bil4time, and there is one feature I REALLY miss: The ability of the tool to feed the teimsheets to the calendar - i.e., when I log some time the project (say, 12:00-14:00 - "washed dishes for mom" on the "Project Mom") it would show up on the calendar as an event with that time and duration. A calendar is useful not only for planning the future, but also to record the past.
I REALLY want this feature....