I have had my 2nd gen touch 6 months and I haven't gotten a case for it. I have noticed some dust under the screen, not so much that it screws up watching movies, but some. I read online that this is an unavoidable result of the screen not being flush with the aluminium side. I am considering taking it into my Apple store and invoking the warrenty about a month before the warrenty expires, (assuming I can do it the same day in store). I was wondering does anyone know if a case that goes around the sides and covers the trench between the glass and aluminium side would help with slowing down the dust accumilation? I have heard others bemoan the fact that their cases do nothing. Can anyone recommend something that might? Or is dust under the glass the Acheles heel of the Ipod Touch?