With all due respect, I do not like how the entire time between a start date and the corresponding deadlines is blocked off on a calendar view. I think these should be nearly independent such that a start date could be a discrete-time possibly with multiple reminders again after the fact; deadlines would also be at a discrete time with multiple reminders prior to the event. Yes it is true that you might get multiple overlapping reminders in between the two dates, but that could be user managed. Start date reminders should terminate at the deadline, although deadline follow up flags ( overdue reminders) could remain. Even if there were no reminders after the start date, I would consider it an improvement because I see no reason to block off the entire period when I can first start a task and when it absolutely must be completed. Thank you.