http://www.nintendo.com/wiiu/system-...BRfyvSB8yMSAx3
Faster performance and new services for Your Wii U console
Unlock the next level of potential for your Wii U™ experience with the system update, available now. Features include:
Performance enhancements: The update reduces the time required to start the Wii U console, launch built-in applications, return to the main menu, and switch between applications, as well as between software and Miiverse™.
More convenient downloads: When you power off the Wii U console during a download, the system will now go into a standby mode, then turn off when all downloads are complete. You'll also be able to determine the priority of your downloads when downloading multiple items at the same time.
Wii Mode update: You can now launch directly into Wii Mode by holding down the B Button on the Wii U GamePad controller while the Wii U logo is being displayed upon start-up.