Which case do u think is best to protect the ipad screen if i am going to put it in my bag (with books and iphone), coz it is not like a laptop which the screen is well protect by the cover, i really think the apple one is not so tough. Although it covered up the screen, it cant really withstand any impact. Ipad give me a feeling that the screen will break easily. I am thinking about using a shockproof bag, just wondering how u guys carry around ur ipad.