Should I update my iPhone to iOS 6.1.3?

I have an iPhone 3GS and iOS 6.0.1. I am thinking about updating my iPhone to iOS 6.1.3, but I heard that on this iOS are some battery life problems. So I would to know if I should update my iPhone or should stay with iOS 6.0.1.

Need to find point of sender?

Hi all. Ive been getting dodgy emails and been trying to find out where its being sent from, here is the details i have, can anyone locate this sender?

Delivered-To: <My email>
Received: by 10.49.25.137 with SMTP id c9csp39131qeg;
Wed, 10 Jul 2013 14:20:30 -0700 (PDT)
X-Received: by 10.14.203.194 with SMTP id f42mr38473628eeo.53.1373491229745;
Wed, 10 Jul 2013 14:20:29 -0700 (PDT)
Return-Path: <andreabarnes53@gmail.com>
Received: from mail-ee0-x231.google.com (mail-ee0-x231.google.com [2a00:1450:4013:c00:231])
by mx.google.com with ESMTPS id s8si26194144ees.28.2013.07.10.14.20.29
for <my email>
(version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128);
Wed, 10 Jul 2013 14:20:29 -0700 (PDT)
Received-SPF: pass (google.com: domain of andreabarnes53@gmail.com designates 2a00:1450:4013:c00:231 as permitted sender) client-ip=2a00:1450:4013:c00:231;
Authentication-Results: mx.google.com;
spf=pass (google.com: domain of andreabarnes53@gmail.com designates 2a00:1450:4013:c00:231 as permitted sender) smtp.mail=andreabarnes53@gmail.com;
dkim=pass header.i=@gmail.com
Received: by mail-ee0-x231.google.com with SMTP id b57so5085586eek.22
for <MY EMAIL>; Wed, 10 Jul 2013 14:20:29 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=gmail.com; s=20120113;
h=subject:references:from:content-type:x…
:message-id:date:to:content-transfer-enc…
bh=P9ThvIscoHJxsH1BDcz/y22n+X9K+oRrIaSpN…
b=jdhfTbvIdcmjG0e1ly/YMkl6EGxfr+iKe4FatX…
/+0DjFF1dSS/6bUUUs2wifC0wYtlbJll8WuwPWeJ…
6iker1PDPobRfrQ2kEKfpltaokai+OohbM5mMmHT…
qgzZMTf9Np/AiiVQ7REe0Z2c9CenCR0dsPhbW4/D…
3VKNVO37TABVJJ46zrSQV/ySySAjJpUlzb5MgyYU…
Td8Q==
X-Received: by 10.14.213.135 with SMTP id a7mr37569262eep.152.1373491229370;
Wed, 10 Jul 2013 14:20:29 -0700 (PDT)
Return-Path: <andreabarnes53@gmail.com>
Received: from [10.37.8.4] (dab-far1-h-73-1.dab.02.net. [82.132.220.205])
by mx.google.com with ESMTPSA id n45sm63352747eew.1.2013.07.10.14.20.27
for <MY EMAIL>
(version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128);
Wed, 10 Jul 2013 14:20:28 -0700 (PDT)
Subject: Re: :)
References: <CAFc17Ae6TJ7UvjVgCrQydrOp-Cxetdcnrrmbuh…
From: Andrea <andreabarnes53@gmail.com>
Content-Type: multipart/alternative;
boundary=Apple-Mail-690A898D-FACC-4A7…
X-Mailer: iPhone Mail (10B329)
In-Reply-To: <CAFc17Ae6TJ7UvjVgCrQydrOp-Cxetdcnrrmbuh…
Message-Id: <A1FD2DBA-AA4F-478E-B987-B94F2FD8FE41@gm…
Date: Wed, 10 Jul 2013 22:20:21 +0100
To: Ricky <MY EMAIL>
Content-Transfer-Encoding: 7bit
Mime-Version: 1.0 (1.0)

Is there a way I can make it so that when I view an email on my iPhone?

… It marks it as viewed on my computer with all my mail accounts?

I "seems" like it does this with my gmail (although I cannot tell) but with Hotmail and other mail accounts it doesn't do this.

Is there anyone that knows if there is a way to make it so that it will do it?

Thanks

Is there a logical structure to Japanese kana?

I've just begun to teach myself Japanese, and right now I'm trying to focus on learning the kana, currently just hiragana.

Is there any logical structure to how the characters are constructed so that I might be able to identify common vowel or consonant groups which will help me to identify and write them? I'm working on associating each kana with some form of imagery or mnemonic/memory device, but this is easier for some and harder for others.

I'm also trying to gain an appreciation of the different strokes and what might influence a subset of kana to share one or more strokes. For example NA and TA both have the 't' shape symbol in the top left, and NU and ME are almost identical with the exception of the loop in NU. Are the strokes used based on the sound, the meaning, or something else entirely?

Also, if you feel like sharing some basic tips for someone starting out, I'd sure welcome it. I'm currently just watching a few YouTube videos over a few times so that it will sink in, as well as practicing phrases in my head and out loud and writing hiragana on paper and some iPhone apps.

How to use 3G on virgin media (iPhone)?

So I recently got an iPhone 4S, and ported my number across. Texting and calling works fine, but 3G or mobile data don't work. I also realised sometimes my carrier had a capital V, and sometimes a lowercase v. So I called virgin customer services and they didn't recognise my phone number. I went to the website and they didn't recognise my IMEI number. Can somebody help me get my 3G to work? Thank you.

How to remove your iphone from ijackit?

Guys, please help. Has anyone ever used powerjackit ijackit?

http://www.powerjackits.com/

I have got one, and there is absolutely no instruction on how to remove your iPhone. Theer is no release button, the website FAQs don't say anything, box has no instructions and the link to contact details on the website has broken down.

How to remove my Evasion Jailbreak?

Hi guys, I jailbroke my iPhone 4s (iOS 6.1) using Evasi0n when it came out. Since iOS 7 is coming out soon, I was wondering, would it work if I simply update to the new iOS? Or do I have to restore my phone first? I read somewhere that simply clicking "update" will remove the jailbreak as well as update the iOS, but a lot of people are saying that this doesn't work in case of the Evasi0n based jailbreak.
Can someone please clear this for me? I have a lot of data on my phone and a lot of in-app data as well and I don't want to lose them:(

How to jailbreak my iPhone 4 version 5.1.1?

Please tell me how to jailbreak my iPhone 4
And after jailbreak what changes in my iPhone warntey
And how to recover all app and data of iPhone after jailbreak