Yea they should sticky this, but in most cases, for the first 3-4 days, burn your batt. to 0. then charge it, do that for 3-4 days in a row or more. Your battery will get better. How much better? I dont know, mine does pretty good now and I use it a lot. I usually get a good 18-20 hour day out of it with moderate use, wifi and bluetooth always on, a few auto update widgets, etc.
I think the "turn off live wallpaper" thing is kinda silly personally. I dont use them cause I find them distracting, but they would only ever use any battery power when they are being displayed on your home screen. When you have another screen open (a full screen) the wallpaper is not in use. When your screen is off, the wallpaper isnt doing anything (unless I am wrong. But it would seem silly that it would be "running" even when it is not being dispayed).
So try the battery burn in thing, it will help. Im under the idea that what is the point of having a fancy phone that can do all kinds of cool stuff if you have to turn them off. As long as you dont go crazy with a million widgets always running and updating every 5 minuts, with latitude constantly running updating your location every 2 minuts and the phone set to never sleep, you should be able to get a good solid day of moderate use for this thing. If not, maybe you have a bunk battery, or your idea of moderate is different than the average.
