should i get an apple iphone 3g screen protector? That, and if I do buy one will it somehow effect the touch sensitivity of the glass screen at all? What do you think? Any people who have an iPhone 3g please respond…I need your help because since it is glass it looks like it will crack pretty easily?? but some people say the new apple iphone 3g screen protector does not apply at all because the screen is very very hard. some people say even drop it on concrete it will not crack?? wondering is it true case or just myth.