I am considering the premium version. One thing I'd like to be able to do is add a contact to a to do, so that I can dial them directly from the reminder. Is this possible?
That's partially possible. You can't add a contact to a task meaning - you can access a list of contacts and select one, but you can add phone numbers into task notes and all numbers in a note should automatically become dialable when tapping on them.
I'd really love to see this feature as well. It's incredible helpful. Please see my attached mock-up.