It started with a speck. Now there is a circle of dust under the glass surrounding the home button. No amount of blowing gets rid of it. When I press the home button dust comes out and surrounds it but the larger specks remain under the glass. Since new the home button never felt as good as my other iDevices. It's stiff and much louder than any of the other devices. In contrast the home button on my iPad 3 is nice and springy. Anyone else experience this? Here in Ireland we don't have an Apple Store, so no Genius. I'd have to mail the phone in if its something Apple would even look at.