I don't remember all the changes, but some are:
- Based on KPN 2.3.3 official rom for Spain.
- Changed boot animation.
- CRT animation enabled.
- SIP calling enabled.
- Removed some Samsung bloatware.
- Added Cyanogenmod's DSPManager (equalizer).
- Added some Google's apps, including Car Home and Music, among others.
- Added some other apps (according to my preferences).
- Custom kernel with ext4 support.
- Replaced Samsung's TW-Launcher with Zeam.
- Removed Samsung's keyboard.
- Added Gingerbread stock keyboard.
- Removed Swype, as this lets you install the latest beta .(http://beta.swype.com).
- Replaced the Clock and alarm app with Cyanogenmod's one (more options for alarms).
- More changes that I don't remember.
Flash from ClockworkMod. You need to have previously installed any Gingerbread rom.
No wipe needed. Always make a nandroid backup before flashing roms.
Sorry for the screenshots in spanish, I'll add english versions later.
Link: Uploading new version.