According to InCrysis, the Crysis demo has been pushed back until tomorrow, October 27th.
The main reason for this delay is that there have been some problems with those who have pre-ordered the game. The plan was that those who pre-ordered the game would be able to get the demo on Thursday, the 25th.
The demo is now scheduled for Friday, October 26th at 1:00PM (GMT+1) for those who pre-ordered Crysis. On Saturday, October 27th at 1:00PM the demo will be available for everyone to download, so be sure to stalk your favorite download site.
InCrysis hints at yet another surprise, and we aren't talking about the Sandbox level editor.