> I think having this functionality as an add-on works quite well and keeps
> out cross-dependencies between lightning and addressbook.
I disagree. This is basic functionality available in any addressbook. Lightning is already an addon, it will confuse users that they have to install N (where N>1) addons to get the basic functionalities.
If Lightning does not integrate with the addressbook, then what is the point of the users using an integrated solution?
> I think having this functionality as an add-on works quite well and keeps
> out cross-dependencies between lightning and addressbook.
I disagree. This is basic functionality available in any addressbook. Lightning is already an addon, it will confuse users that they have to install N (where N>1) addons to get the basic functionalities.
If Lightning does not integrate with the addressbook, then what is the point of the users using an integrated solution?