It looks like Nintendo's Wii U, the follow-up to the highly successful Wii, is continuing to falter in terms of sales. In fact, Gamasutra is reporting that it received a tip from someone with access to the latest NPD sales data for January, and it shows Wii U sales were well under 100,000 sold. In fact, it estimates that the number lies somewhere between 45k-59k for January. That is bad. To put that into perspective, the Wii U is not even four months old yet, and it has already sold less in January than the Xbox 360, Playstation 3, or Nintendo Wii sold in any month, ever. Nintendo is going to have to do something about this fairly quickly. The Playstation 4 has already been unveiled, and the next Xbox is reportedly set for an unveiling next month, and you can bet that both of these consoles will offer "true" next-generation experiences.