Samsung have released the Source Code of Ice Cream Sandwich 4.0 for people who like tinkering with ROMs 
http://androidcommunity.com/samsung-...code-20120319/
http://www.theregister.co.uk/2012/03...en_source_ics/
https://opensource.samsung.com/index...066DE8FDD377E7

http://androidcommunity.com/samsung-...code-20120319/
http://www.theregister.co.uk/2012/03...en_source_ics/
https://opensource.samsung.com/index...066DE8FDD377E7