Share your experience!
This Upgrade seems to be mainly concentrated on performance....
Dailer delay reduced,
Apps response increased,
UI smoother,
good reception on wifi.. And also Xperia S music is working without root access....
There may be some of other issues rectified, still needs to figured out....
now check for OTA update,
go to menu-> update center -> hit refreash to check for update,
my SI number is not mentioned in the list, bt i able to update for both
Visit XDA and download the .ftf firmware file and manually flash your phone using Flashtool