Does anyone know if this is possible - to patch or modify firmware to make a k530i or any other SE phone's display to sleep while in call. Something what iphone does. Althought the display dims after a while when in call, it still is on, thereby consuming power that can be saved by turning lcd off. This can be done by pressing the shortcuts button (or going down into some submenu from main menu - lcd sleeps after a few seconds) but it would be nice if the phone were to handle it on its own.