My grandson has an ipod,4th generation,and his 3 year old sister,tripped whilst running with it and the glass screen shattered.I looked an American Apple sites and found lots of reports.The reports were saying that there is a problem with the screen on 4th Gen ipods,and most people have taken them back into the Apple shop and they have replaced F.O.C..Is this an admission from Apple that they know there is a problem with the glass in the screen which is supposed to be 20 times stronger than toughened glass,and has anyone on here any experience of this problem ?