A simple one: Autofill contact data
Why couldn't the company info automatically fill in when I add a contact? I understand some details could be different, but there is always the opportunity to manually override the info. This would reduce the time it takes to add details (= increased productivity) and help retain more of the pertinent data (i.e. why do I have to add a phone number to the contact when the company number is already listed in the company record? This is especially helpful when making phone calls from the mobile app.