I have had a strange thing happen to my screen, it started with what I thought was a small scratch, and has grown along the top of my screen over the last couple of weeks. It is difficult to photograph and I have included the best shot I could get. I have taken this in to an O2 store and was told by the girl behind the counter that she thought it was a scratch, but it is definitely behind the glass. I was just curious if anyone else has had this issue. I was also told at O2 they could not exchange it and I should go to my nearest apple store (3hr round trip). I have also noticed light leak from the left hand side of the screen and also specks of dust under the glass, do you think I have a good case for an exchange? It is really disappointing as I did not have one issue with my 2G now I have 3 with my 3G!