The Software Freedom Law Center (SFLC), provider of pro-bono legal services to protect and advance Free and Open Source Software (FOSS), today announced it will represent The X.Org Foundation, the global consortium that develops and supports X Window System technology and standards. X Window System, an open source project, is the underlying technology behind the graphical user interface (GUI) used on all UNIX and Linux operating systems and is also popular on Macintosh, Windows and other operating systems.