Idea #10662: standard interface for contacts

I have a lot of contacts I need to reenter on different applications: e-mail program, phone and instant messenger.

I want to use the same contacs for all these applications. So when I add an contact to my chat application, the vCard should be saved, so that my e-mail programm (or annother communication application) can use it.

If I add one contact to my adressbook, the contact should get my contact also (if I want).

Also it should be possible to look up an contact over an internet service.

May I want to write a letter. Then my word processor can use my adress book / my contacts.

Also I want to use these contacts on my mobile phone and on my computer at work.

http://www.netdrain.com/soylent/pictures/soylent-0.1.6.png
http://pim.kde.org/akonadi/architecture.png