I recently orded a 30gb iPod and am going to need a case. I was planning on just using a sock, since I dont like the size increase and the change in look due to other cases. I noticed there is an invisible shield, however it seems to be only a piece of plastic??, and similar to the one that comes with the ipod protecting it in the box. Is this true, I dont think it would be like this for almost 20$. Anyone have one on their iPod, do you like it, make any comments you have please...I definitely want to keep this iPod immaculate. possible photos too?