To add to the news of vaporware still being in production (referring to DNF), the long awaited mod for Half Life 2, Black Mesa (previously Black Mesa: Source) has been announced as nearly complete this week.  For those who don't know, Black Mesa is a mod that was announced six years ago and is a complete remake of HL1 using the Source Engine.  And I don't mean like the Valve-made Half Life Source Engine port.  The mod aims to modernize completely the experience of HL1, completely for free.  Though their website has not been updated in over 220 days, one of the texture creators for the project, "Orcone", is a member at Atomic Gamer, and Orcone brought them a nearly complete version of the game to play through.  They ran an article on it on August 31, calling the experience jawdropping and the project an "outstanding effort."   
 
This is wonderful news for me personally, I have been periodically checking out this project for years now, and to hear that it is almost complete is incredible.  They are stating it might be out by the end of 2010. 
 
Here's the trailer for those who don't know about this project: 
  

Sweet leaping Jesus, I was about to give up hope. When I heard about the project I was hoping that Episode 3 would be done around the same time so I could play through the whole series in sequence, I think that idea came to me 15 years ago.

Can't wait for it. I had alot of trouble getting into half life, I haven't finished it because it's crude graphically and enginewise, compare to half life 2 which was perfect besides going on forever.

" If only HL was a good game. "