thzx for your answering:)
For number 3: why do you will install on external sd? Rom it isn't so fast on external?
last time when i just partition 'my storage'
my storage is loss ... even i do nue storage,reformat and format and hard reset i still cannot get it…
so what do i do reinstall the real omnia update program from Samsung website and 8gb is come back---->this would be very useful to those who lose my storage(but it seems that there isn't has any program now, have to google it).
personally, i won't install to my storage now and get a chance to loss data.