PXP???

Hi! Do anybody know anything about PXP? I've sent a letter to the Luis Argerich, asking if he can help me find anything about this subject (as he presented a session about PXP at ApacheCon). The ApacheCon website says this about the subject: "The PXP project is an open-source fremework to develop dynamic Web sites based on reusable PHP components called portlets, XML and XSLT to render the presentation layer to different access devices such as browsers, WAP devices, handhelds, etc. The project stresses software reusability and the use of XML to develop dynamic Web sites." I am interested in the progress he made, but cannot find any info on the net. Goba