Samsung has officially announced that its Samsung Galaxy S would not receive the Android Ice Cream Sandwich (ICS) upgrade due to the several issues. However, folks at XDA-Developers have made the initiative to come up with the ICS ROM for the Galaxy S users.
The current release candidate version is 3.1 featuring a lot of improvements with the ICS interface. You can see the demo in the following video.
To know more about how to install the ROM on your Samsung Galaxy S, visit XDA-Developers page here.