I really would like one feature: when i create task to user XY, task reminder - email will be sent to him so he knows there is new task in his task list.

Is something like that possible? Now there is reminder checkbox + send email option => but that sends it only to me...but i want it to go to the owner of the task.

Not to mention that best thing that is not possibe is ability to actually assign task to anyone without need to share task lists.