V9s, on 11 December 2012 - 14:57, said:
I know that...but that's not what i'm looking for. What I meant was that what if I "reformatted" my tablet OS (i.e. factory reset) and then wanted to "restore" my user apps and the app settings I had previously without having to set them up again (like reformatting a PC with a fresh OS install but restore apps and their settings as they were set up before). Is that possible?
Will that wipe any app settings (i.e. logins for email/gmail, system settings, etc)?
Quite easily actually. Head over to XDA forums and you'll find one-click nexus toolkits that guide you through the process and do everything for you. Rooting requires bootloader unlock, and that wipes everything on your device (but the toolkits backup your stuff...so no worries there!).
Sorry, I wrote up a reply to this topic but apparently I never posted it. What you want is Titanium Backup. Go ahead and download it. Hell, go ahead and pay for it. It'll be one of your most valuable apps and the pay version does add features. Anyway, this will backup your apps and their current states so that you can recover them back to the way they were on a fresh OS install.
Flashing a kernel won't wipe your system. You'll want to wipe your caches after you flash the new kernel though, but that won't be noticeable to you aside from a quick optimization of apps when you boot.
patseguin, on 11 December 2012 - 16:21, said:
And what exactly is the reason to root the device? I only want to because the PS3 controller app needs root access for whatever reason.
Well, you root for a number of reasons, but not everyone has a reason to need to. One of the biggest reasons would be for apps like I mentioned above, Titanium Backup. Other reasons for root might be using a USB drive with USB OTG, modifying more advanced settings (DPI for example), and a number of other features like the PS3 controller you mention. It's Linux, so it's the same as if you needed root access on Linux, or even like having Admin access on a Windows box. It's not a complicated process though, so if you even have one reason like you mentioned above, then I think you have enough reason to root.