I reckon the dust get's in through the gaps in the d-pad and xoAd buttons. Do you think if stuck a hoover nossle on the gaps it would damage the screen at all or just harmlessly suck the dust away? I think using compressed air would just blow the dust further into the middle of the screen. Why couldn't sony have made the psp air tight or something? Do you think dust in the screen is worth sending the psp back to sony?