I do not care to entertain the makers of alternate UIs for built-in functions of a computer unless they provide extraordinary value beyond the default option.
Fantastical
Fantastical currently allows entry for a due date on a new reminder, but does not support the “remind me on” or “remind me at a location” features of the Mountain Lion Reminders app. Furthermore, the Due Date setting is only able to input a date and not a time beyond the preferences for default reminder times.






