Announced at Nintendo's E3 2011 conference, the successor to the Wii will feature touch-screen controllers that can stream entire games.
The controller will be 6.2 inches in size, and features a rechargeable battery, standard gameplay buttons, a gyroscope, rumble, speakers and a microphone.
The console itself will be 1.8 inches in height, 6.8 inches wide and 10.5 inches in length, and will be similar to the current Wii system, according to CVG.
It will be backwards compatible with the Wii, and will support the Nunchuk, Classic Controller and Wii Balance Board.
The disc format will be custom-made and of high-density, and not Blu-ray as previously rumoured.
In terms of storage, there will be internal flash memory as well as the option for SD cards or an external hard drive.
Powered by a IBM multi-core micro-processor, it will output Xbox 360 and PlayStation 3 level visuals of up to 1080p resolution.
Wii U will be available worldwide in 2011.
Wii U coverage from Nintendo's E3 2011 conference:
> Wii U announced as new Nintendo console
> Wii U pictures: Nintendo's new controller
> Super Smash Bros. coming to Wii U, 3DS
> Assassin's Creed, Ghost Recon for Wii U
> E3 2011: Nintendo Conference live blog
3DS, Wii coverage from Nintendo's E3 2011 conference:
> Super Mario 3DS trailer released, out 2011
> Zelda: Skyward Sword trailer released, out 2011
> Luigi's Mansion 2, Mario Kart revealed for 3DS
> Kid Icarus, Star Fox 3D out this year
> Zelda: Four Swords free for DSi users
> Zelda: Link's Awakening available from 3DS store
Wii U technical specifications in full:
Size: Approximately 1.8 inches tall, 6.8 inches wide and 10.5 inches long.
New Controller: The new controller incorporates a 6.2-inch, 16:9 touch screen and traditional button controls, including two analogue Circle Pads. This combination removes the traditional barriers between games, players and the TV by creating a second window into the video game world.
The rechargeable controller includes a Power button, Home button, +Control Pad, A/B/X/Y buttons, L/R buttons and ZL/ZR buttons. It includes a built-in accelerometer and gyroscope, rumble feature, camera, a microphone, stereo speakers, a sensor strip and a stylus.
Other Controls: Up to four Wii Remote (or Wii Remote Plus) controllers can be connected at once.
The new console supports all Wii controllers and input devices, including the Nunchuk controller, Classic Controller, Classic Controller Pro and Wii Balance Board.
Media: A single self-loading media bay will play 12-centimeter proprietary high-density
optical discs for the new console, as well as 12-centimeter Wii optical discs.
Video Output: Supports 1080p, 1080i, 720p, 480p and 480i. Compatible cables include HDMI, component, S-video and composite.
Audio Output: Uses AV Multi Out connector. Six-channel PCM linear output through HDMI.
Storage: The console will have internal flash memory, as well as the option to expand its memory using either an SD memory card or an external USB hard disk drive.
CPU: IBM Power-based multi-core microprocessor.
Other: Four USB 2.0 connector slots are included. The new console is backward compatible with Wii games and Wii accessories.
Note: Details are subject to change.
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Watch the Wii U reveal trailer below: