So it seems Nintendo is now having trouble with their online servers this Christmas morning. Either Nintendo did very well this Holiday season and actually sold a good amount of hardware or maybe more likely is just they weren't really prepared for the outage to take place. It has happened before with certain game launches but things are usually resolved soon.
Wii U seems to be the most affected with 3DS , Wii , and even the old DS just experiencing more minor difficulties. Hope Nintendo resolves soon.