The Linux fanatics at [Phoronix] spotted an interesting note on the RAGE Website suggesting id's Tech 5 engine will be open source, as it reads: "Developed by id Software, id Tech 5 is an advanced open source engine capable of creating incredible environments." John Carmack made comments at QuakeCon 2007 saying Tech 5 would be released as open source a few years into its life (like their previous game engines), so we wrote the id Technical Director to ask if the engine was actually going to be open source upon the release of RAGE, and he clarified that this was a mistake on the website, and it will be corrected.