What happens when I download the iOS 6 update from my iPod.?

On my iPod, in settings, it says I can download and install iOS 6. Im not sure if I will be able to download the update and carry on as normal (kinda) or if I will have to connect and sync with iTunes.

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia…).