The reason im asking is because i read that when you back up your phone it gets saved on the SD card. The Vibrant comes with a 2 GB card. Will this be enough for a back up?
It gets saved on the internal SD card, which I think the Vibrant has a 16 GB like the Cappy. Either way, it shouldn't be more than a gig, if that (I'm assuming you mean a nandroid).
I'm confused. Doesnt the internal memory get wiped when you go to install a new ROM etc? If that happens wouldn't that mean the nandroid would get deleted as well?