I've read that Samsung disabled the ICS spell-checker by removing it from the settings application. Can it be re-added/enabled without rooting the phone?
Based on Android ICS spell checker does not know how to spell (English)?, spell-checker seems to be enabled [but there's some issues].
Right now, I'm on Samsung Galaxy S2 ICS [using CyanogenMod], and there is a checkbox to enable Spelling correction. When I was using stock ICS, I could turn off spelling / auto-correction, but it might be because I was also using a 3rd-party keyboard [GO SMS Pro]