if u r rooted, it doesnt mean ur battery is last longer or ur phone smooth n no lag.

but if u r rooted, u have the possibility to make ur device battery last longer, n smooth.

u have full control and access to ur phone, to ur system files everything.

root in linux means u have access to all files just like u have administrator account in ms windwos 

Go to first page and read up about about how to root, its there for a reason

With root, u can flash custom roms and kernels, flash the good ones and ur batttery will get better

You g or non g? I think rooting costs like RM50 if rooting has the same market price as jailbreaking, which is downright ridiculous. Most of us here can get rich just by rooting phones.

As long as u follow instructions, and dont simply click this click that, you wont mess up your phone. Rooting is actually pretty straightforward