I currently have an 8 gig iphone, but I'm debating whether or not to return it in favor for a 16 gig one. My friend has a 16 gig one and it seems as though the construction is better with his. Mine has a light leak on the left side, my volume buttons shake audibly, and mine doesn't seem as bright as his. It seems just over all the 16 is made better. Anyone else think this as well? and is it possible to go and get a 16 gig even though I've had my 8 since the 12th? Will I just have to pay the extra 100 dollars or what will happen?