Regarding the battery life, read the details here:
http://www.entourageedge.com/forums/...-battery-life-!.
You can definitely turn the LCD screen off, either by timeout or by using the "Lock" icon on the Power Widget control. The LCD uses something like 50% of the power (or more?) so turning it off greatly boosts battery life. Also, when you're not using the eDGe, just close it which puts it into power saving Hibernate mode.