The Samsung Galaxy Note ICS Update starting coming out in Europe a couple of weeks back. Finally, the ICS update has reached India. If you are using a Samsung Galaxy Note in India, then you can update it ICS. The size of the ICS Update is 319MB and it can be done both Over The Air(OTA) as well as through Kies software.
If you want to do the update OTA, then all you have to do is go to Settings-> About Phone -> Software Updates.
The update does not change the look and feel much. Everything is internal. You will however get some new apps exclusive for the Galaxy Note like the S-Memo and S-Note. Also the browser is an advanced one.