Be able to add "related contacts" (e.g. "works with")
It's sometimes valuable information how two contacts are connected (and that they are connected) apart from working at the same company, e.g. they work on the same team. It would be great if such connections could be saved apart from adding them to the description.
Due to a low level of demand we are not looking at adding this functionality at this time.
Zoltán Lehóczky commented
In a more generic way, this would be a feature to connect to entities (people, companies) with an arbitrary label ("knows", "is friend of", "works with"), building your contact social graph.