Is this true that with 4.3.1 the battery drains faster? Why is that? May be it is intended to be like that to run apps faster. My wife's 3gs is still in 3.xxxx(original). She is asking me to update it, jailbreak, unlock and what ever there is available that can be done to it to make it better.. If 4.3.1 is not that good, which update should I take that is tested to be good? The basebands is 06.15.00. Does this need an update too? How?