Wii U Gamepad controller undergoes a redesign, while Nintendo unveil social network Miiverse.
Wii U E3 2012 Infographic - My Nintendo News
Nintendo reveals updated Wii U hardware and Miiverse social network ahead of E3
Rumour: Wii U Heading for E3 Face-Off with PS4 and Xbox 720
E3 2012: Nintendo reveals new Wii U details and Super Mario Bros. game
Wii U GamePad, online features revealed - GameSpot
Nintendo To Show Wii U Projects That Can Only Work With The GamePad At E3 - My Nintendo News
Wii U - Wikiwand
Wii U - Wikipedia
Nintendo unveils new Wii U GamePad - CNET
Nintendo's Provocative Pre-E3 Wii U Reveal: A Tweaked Controller and New Social Network