If anyone want official update using dirty way (No rooting required)
Change your CSC Code to German and upgrade via KIES; this will also factory reset your phone.
*#272*IMEI# then change the CSC to DBT.
Phone will reset.
Change language to English (bottom right icon)
follow prompts to setup
Connect to KIES and the phone will update to ICS.
When your finished, you change the CSC code back to whatever you had before.
Original thread: here
Everything you do at your own risk! Don't jump to me if your phone go south!