Today we were able to confirm with Rockstar Games that the PC version of Grand Theft Auto IV has been delayed until December 2nd in North America and December 3rd in Europe. Suspicions of a possible delay began in October, when some retailers changed the release date on their websites, and last week IGN claimed to have been given official word of a delay by Rockstar. The game was originally due for release on November 18th and November 21st, in North America and Europe respectively.
The official GTA IV website has now been updated in accordance with this news.
Discuss the delay over at our forums.