Copper is a Web-based project management software tool designed to help creative teams manage clients, projects, tasks, files, budgets, and events. It has an HTML/AJAX front end. It is available with full source for a licence fee or as a SAAS hosted service (compatible with iPhone, but available via PC/Mac/Linux and a Web browser).
NTX is a groupware solution based on Open-Xchange and CentOS5, and is distributated as an ISO image. Open-Xchange can be a challange to install for most people, but this ISO image makes it very easy. In less than 45 minutes, it installs the OS (CentOS5), Open-Xchange, and all its requirements and third party software like avaadm, linbox, Amavis, ClamAV, websieve Spamassassin, munin, and monit.