Assuming the rumors are true about a pressure-sensitive home button, will that mean the Touch ID senor will be more prone to scratches? The current Touch ID button is made out of sapphire which is very scratch resistant. I haven't heard of anyone actually scratching on (although I'm sure someone has). If the new home button is part of the glass screen then it would be just as scratch prone as the rest of the screen which does scratch pretty easily. Will those micro scratches affect Touch ID recognition? I would expect that they would. Alternatively maybe Apple will bond a sapphire button to the front glass panel to avoid this issue. I'm surprised we haven't had any parts leaks regarding this.