Ok, I'm getting a buildup of dust around my home button. An eyesore, and I'm afraid it might get to this: http://www.popularmechanics.com/tech...o/4291585.html Now is it safe for me to slide the edge of a $5 note around the home button to try get some of the dust out? (i live in australia, we have durable, yet thin, bank notes ) Or is it possible for me to somehow break a seal of some sort that keeps the dust away from under the screen? i only ask because ive had this dust under the screen problem before and i dont want to have to replace the iphone again... anyone opened up the iphone and know what the seal is like?? thanks all!