No, you won't believe the battery life. I can talk on the phone and have 100 messages and the battery is still at 85% or 90%. It charges through a USB cable and takes about 15 to 30 minutes per day max to maintain fully charged.

The screen is smaller, but the overall unit is lighter and the screen is so good, IMHO, that this isn't an issue in terms of readability.

Some have complained about the backlight. Basically, the brighter the light, the better you can see. I can read this screen in any typical roomlight easily, and unlike other devices, I can easily read it in the bright sunlight. Where the backlight is valuable is in a dark room. It is not designed to assist in anything but darkness. I find this a reasonable compromise given the strengths of battery life and screen legibility.