kmail is the email client for kde, specifically it supports ldap address books in read and write mode and html mail (which I hate and is wrong, but that is the world of corporates - horrible and wrong)

On kde4.3 I have finally configured it well, took me awhile to get all the settings correct though.

But when the phone n900/rover/whatever comes, I am hoping to do most of my work from that rather than from my desktop.

So it's ldap read/write support for address books that I need in Modest, unless someone knows a method of doing it at the moment?