During his QuakeCon keynote, John Carmack announced plans to release the source code to id's Tech 4 engine from DOOM 3 before the end of this year. A couple of years ago an issue related to a patent conflict with Creative Labs was identified as something that could impede such a GPL release, but at the time id's Technical Director indicated if it came to that, he could fashion a workaround. Here's what Phoronix wrote about the news: "The source-code to Doom 3 is definitely to be released this year, Zenimax (the company that acquired id Software) has been supportive of the process, and he has challenged other game developers to release old source-code too. Carmack says that releasing the code really helps the development community." Thanks Ant via Slashdot.