Infonomix is a project management system similar to Trac, written in PHP and using XSLT. It is designed more for professional services tasks, like graphic design and Web development. It also keeps track of time using a time clock system, and time can be assigned to tasks, projects, or clients.
PhunkyBB is a Web-based forum system that is distinguished by its use of XSL as its template language. By using XSL, PhunkyBB is able to run on several different platforms, not only in terms of operating system, but also programming language. At this time, it has only been tested and used on PHP, but some test runs have been done on Perl, Python, Tcl, and Ruby.