NobleAddiction

You can now claim your custom Nintendo ID. Make sure you claim it before someone else takes your name. A Nintendo ID is essentially your Nintendo Gamer Tag and it will now [FOR THE FIRST TIME EVER] allow you to link digital purchases to your account, rather than your hardware. This means there is a good chance that when Nintendo make a new console, you will be able to re-download your purchased digital games onto that console so long as you are using the same account information.

This video walks you through a short and easy to follow, step by step tutorial of how to change your PSN ID. Previously Sony had no way of allowing its users to change your identity (PSN ID) but with this new change any current PlayStation user can freely change their name.