According to the take2games website in an article released recently, San Andreas will be moved to a later date. May I remind you that San Andreas was confirmed for release on the 19th in some countries, and the 22nd in the others. Now the US release is on the 26th of October, and the UK on the 29th. The countdown on the right side of the page has been updated to reflect the changes.
Here is the quote taken from the article.
Take-Two has an extensive product lineup planned this holiday season, beginning in the fourth quarter. Rockstar will introduce Grand Theft Auto: San Andreas, the next iteration in the globally successful franchise which has sold over 32 million units. Developed by world-class designers Rockstar North, Grand Theft Auto: San Andreas will be available exclusively for the PlayStation 2 and is expected to be in stores in North America on October 26, 2004 and in Europe on October 29, 2004.
Rockstar Warehouse website also has the release date listed as 26th of October.
On a lighter note in the same take2 article they hinted on when San Andreas will be released for PC.
Additional products planned for fiscal 2005 from Rockstar Games include Grand Theft Auto: San Andreas for PC in the third quarter.