[turba] synchronization with desktop app?

[sketchmaster at bestmail.us]

To me, the strongest feature of [Exchange, Outlook, and Outlook Web 
Access (OWA)] is the ability to enter contact info in Outlook, then 
view it later in OWA, and vice versa.  You can also view it on your 
secondary laptop in Outlook.  This is because Exchange offers 
synchronization (even across a WAN) whereby everything that is stored 
on the Exchange server is stored locally on the PC as well.  Users get 
the benefit of a great desktop application for the majority of their 
use, but also have the benefit of access to their data on the go.

SO...

1.  Is there a way to achieve similar functionality using Turba, and 
any Windows LDAP client(s)?

2.  Is there any other contact management system that works the same 
way Exchange does? I know for a fact ACT! does not truely work the 
same way because the only way to use the winclient is if the Winclient 
is on the same LAN as the server--you can't use the winclient over a 
WAN--you have to use the webaccess version.

Thank you
--Jay