Duke Nukem forever has been officially plugged due to the shutting down of 3D Realms, the company developing it.
Duke Nukem forever was announced more than 12 years ago - April 28, 1997.
Here's an interesting website with a post-mortem on Duke Nukem forever, including a list of things that have happened in the world since Duke Nukem forever was announced. It's a really great read:
http://duke.a-13.net/
Here are some of my favorites:
Here's somethings personal yet striking: In the entire time that Duke Nukem Forever was in development, I began studying Japanese, got my drivers' license, started my first summer employment, entered university, studied abroad in Japan, met my fiancee, came back from Japan, graduated from university, got my first real job, moved to Japan, became a translator, and made lots of money.* While DNF has been in production, Blizzard Entertainment, another studio famous for delays, has released four full games(Starcraft, Diablo 2, Warcraft 3, and World of Warcraft), with expansions for all of them.
* In April of 1997, Google, eBay, and the term "weblog" didn't exist.
* Britney Spears' entire musical career as a pop star has taken place during Duke Nukem Forever's development.
* The entire line of Grand Theft Auto games was released.
* If someone bought one of every single Magic: The Gathering card printed since DNF was announced, they would have a collection of approximately 101,742 cards.
* I had not yet started studying Japanese. I now make lots of money as a J-->E Translator.