I use the Sleep Timer all the time - usually at least once or twice a day, sometimes more. I keep my phone sitting in front of me, often in landscape orientation. When I tap the Sleep Timer icon, I can select a time, but I can't actually tap the button to set it! And when I rotate the phone to portrait orientation, the time I selected goes away and I have to reselect. I'd love to be able to set this in landscape orientation.