A Nintendo Wii U system update is needed for Wii backwards compatibility.

With the Wii U launch just over a week away, new information about the system and its launch day patch are coming to light.

On Friday afternoon, it was revealed that aside from bringing online services like eShop and Miiverse to the Nintendo Wii U, the launch day patch will also be bringing Wii backwards compatibility.

According to a report by IGN, the Wii U will not run Wii software until you download the system update on launch day. At this time there are no additional details on this day one patch, however, it is known that features like the Nintendo eShop, Miiverse, TVii, and other online functionality will come via the launch day update.


Source: http://www.examiner.com