A review from my personal perspective: http://mengsuan.blogspot.com/2010/09/samsu...000-review.html

ok, here is my suggestion, seeing you have flashing many times before, do the wipe battstat method, i did this after every flash, or a week or two of usage. and i getting good batt life, really good in my opinion,
easier method: find root explorer or any explorer that can go into the system folder, then just navigate to /data/system/ and delete the batterystats.bin its the same thing, but still do the charging though, for my way, i charge until it full first, delete, then charge with turn on until full, turn off then charge until full,

reason for doing this: its no use what power you battery have, if it thinks it have less power, then it will shutdown, this is wipe the memory of phone about the battery, so the real power is shown. i say this greatly improve my battery.

another thing to remember is the usage, maybe you dont do calls, dont do sms or gaming much, but how about the data connectivity? wifi? how often you turn on your display, and are yous sure you off the gps or not. this suck batt as well.

ow, and do remember that your launcher also sucks batt, i've use LG optimus launcher and my phone only last half of the day, it sucks 5% or so in one hour

astro has no root explorer function

try using androzip....

Using Samsung naked monkey Gorilla. So far no scratch after 1 month.
Need some patience. You must use sticky tape on your fingers to lift the protector and then remove dust.

if i root on 2.1.... then when i want to change to 2.2 froyo do i have to re-root?

Yes.