Ok, but apart from peeking the clock and notifications for messages, what else use is the home screen coming from dark/shutdown screen? Something like 90% of time, homescreen really is only a chore. You can't even click on message/email notification to take you to those messages. And having two different gestures for Ambiance change is just a massive opportunity lost. Does anyone change Ambience often enough for it warranting even a single gesture from home screen, not to mention the two existing two gestures from homescreen?