* Ability to invite contacts to chat (using Google Talk / Gmail Chat) after I select an individual contact

* Ability to add description to 'Groups'

* Profile popup should appear also when I expand the list of recipients in an email

* Quick-edit for more contact details in Profile popup like what is being done for the name of contact

* Star contacts

* Show map snippet within contact manager

* Icons instead of IM provider names

um.. also the ability to add a skype id.. and an out of USA address

I need a deduplicate feature for my contacts!!!

share groups with other people

update your profile, and it updates on other peoples contact list (obviously only if you give them access)