It's safe mate
No you cant coz there is no backlight for back and menu buttons
You'll loose root access and all your mods
and to get the root access again the method for rooting ics will worked for this version also???flashing kerne...
first of all gr8 work...kindly tell me why is there no " b " notification on the notification bar while listening songs ..and when will be fb button will be available for this port..thanks in advance :)