Hi, Is it possible to develop an application which utilizes the phones external hardware buttons when asleep? So one could produce an application that switches the phone to silent without having to wake up the phone or get it out of your pocket etc. Similar to the iPhone external switch. I cannot find an app like it on the market. I tried giving it a go myself but after creating the temperature app (as per the tutorial) I realized its whole different set of parameters to which I am not familiar with at all.