I'm rolling the direct goals of this into ticket 4092.

This is also the idea behind this static CRM demo: 
http://dev.horde.org/~jan/crm/contactview.html

One would need to link contacts and events manually with this 
implementation, but linking automatically for attendees from the 
address book would be a nice addition in a second step.

I would like to have a better integration between Turba and the 
attendees of the events.

Now it's possible to select an attendant from Turba, but only the mail 
address is copied. The contact and the event does not get connected in 
any way.



In some pim programs the attendees can be contacts in the addressbook 
and, so when the event is showed you can have all the information of 
the attendant (not only his/her address) with only one click. You can 
also create events from the contact screen.



It's a wonderful tool to track the relationship with all the contacts 
in your addressbook (having instant access to all the meetings you had 
and will have with him/her) and is essential for using horde as a CRM 
system.



Sorry about my poor English writing. I will try to explain it better 
if requested.