ok, I have done all the syncing on my iPhone with my ppc mac. I am dying to get all the ringtones I had made for my razr on it. I have an intel MacBook pro. If I attatch the iPhone to it, perform ifuntastic! on it, add ringtones, and then sync again with my ppc mac, will I lose the ringtones? if so, is there a way to ensure I don't??