Companies often store their customer information in databases managed by customer relation management tools.
SugarCRM is one such popular (and open source) system, built on the extremly wide spread AMP stack (Apache HTTP, MySQL, PHP). Therefore its main user interface is web based, i.e. accessible through standard web browsers and thus also relatively platform independent.
This is the first release in our departure from the normal KDE SC 4.6 cycle, but you should be able to build against kdelibs and kdepimlibs from either the beta2 or the upcoming first release candidateUPDATE: building against the KDE SC 4.6RC1 kdepimlibs is required -- which should be available soon.
Note that it does require the 1.4.90 Akonadi server which was just released yesterday.
Julien and I met up in Redmond last week, just before the Exchange Open Specifications event at Microsoft. It was a productive time, where we did some serious planning and a little coding, and learned quite a lot more about the protocols from some of the main developers of Exchange and Outlook. Thanks to Microsoft for hosting it.