Is Hebrew support built into ICS 4.0? Need your help before purchase of tablet Asus T300 with ICS 4.0 in USA.
Will I need to put some updates in order to use Hebrew web pages or use hebrew keybord ?
Hebrew is supported in Android 4.0 (it's there since Android 2.2 Froyo).
You can use it as:
- System language
- Keyboard input language (you can set more than one keyboard to quickly toggle it during use by long pressing 'space' when more than one keyboard setting is active)

Actually, this question has been asked before some time ago:

Is Hebrew support built into Android?