TeamNyx, formally called Team ICSSGS has released their long awaited Onecosmics ICSSGS RC5 ROM to the public through their site and from XDA-Developers forum. Try it out for your Samsung Galaxy S phones (Captivate, Vibrant supported).
Based on the latest source code from Google themselves (Android 4.0.4)
Full Google Apps suite
Currently using Devil as a kernel base
Full Hardware Acceleration
Fully Working RIL (Radio Interface Link)
Fully working audio
Touchscreen works perfectly
Fully working Wi-Fi
Fully working Bluetooth
Both SD Cards (Internal & External) work fine
Fully working Calendar sync
Fully working Camera
Tap to focus
Panorama mode in camera works fine
Face Unlock (kinda iffy, due to the VGA FFC)
Fully working GPS (as well as the GPS works on these phones, that is)
USB, Wi-Fi, Bluetooth tethering works fine
Fully working FM Radio (AOSP does not support FM, download an app from the Play Store)
All sensors working (kinda iffy on compass)
Live OC Support (download NSTools from the Play Store)
Battery Life eXtender
Makes you breakfast in the morning
If you are flashing from any ROM
Boot into Clockwork Mod Recovery Mode using volume buttons.
(optional) Backup your current ROM.
Select the .zip that you downloaded and confirm it.
Reboot the phone.
If you get into a bootloop, then boot into recovery and restart the flash.
Wait for the phone to boot (this may take up to ten minutes)