Another CRM Linux based solution on the horizon:
http://www.newsforge.com/article.pl?sid=04/11/19/1436214SugarCRM offers a suite of customer relations management software. Sugar Sales is available in both an open and a closed source edition. The closed source package, Sugar Sales Professional, includes an Outlook plug-in and some additional features not found in the open source edition. I tested Sugar Sales, the open source version, which is available under a variant of the Mozilla Public License. I found the software has a lot of good things to recommend it, but still suffers from the incompleteness of many version 1.0 products.
SugarSales is a Web-based application written in PHP and designed and optimized for a LAMP server (Linux, Apache, MySQL, and PHP).