King InuYasha writes "Nexuiz founder Lee Vermuelen, along with several other Nexuiz core developers, has licensed the Nexuiz name, Nexuiz.com domain, and Nexuiz DarkPlaces engine to Illfonic in a deal to get Nexuiz on the Xbox 360. However, the kink is that the engine has been licensed for non-GPL usage. That is, Illfonic has no intention of contributing their code back to the main GPL Nexuiz project. As a result, Nexuiz has been forked into a new project called Xonotic. While the main Nexuiz site doesn't mention that Illfonic has no intention of contributing back, the Xonotic project FAQ states, "Lee Vermeulen, the Nexuiz project founder, decided to license the Nexuiz code, including the Darkplaces engine, to a new game development company named Illfonic so that they could develop a closed-source version for the PS3. As part of this deal, IllFonic acquired the rights to use the name Nexuiz along with the domain nexuiz.com, and are under no obligation to contribute code back to the open-source Nexuiz project (and have stated that they have no intention of doing so)." Additionally, the Xonotic project states that Illfonic "may be in violation of the GPL as most contributors to the Nexuiz codebase have not relicensed their work for inclusion in a closed-source project.""
Link to Original Source