Nintendo Already Developing Future Consoles
Since Frequency isn't being updated... might as well add news I find to the boards.

"Last year we also started a project to integrate the architecture for our future platforms. What we mean by integrating platforms is not integrating handhelds devices and home consoles to make only one machine. What we are aiming at is to integrate the architecture to form a common basis for software development so that we can make software assets more transferrable, and operating systems and their build-in applications more portable, regardless of form factor or performance of each platform. They will also work to avoid software line-up shortages or software development delays which tend to happen just after the launch of new hardware. Some time ago it was technologically impossible to have the same architecture for handheld devices and home consoles and what we did was therefore reasonable. Although it has not been long since we began to integrate the architecture and this will have no short-term result, we believe that it will provide a great benefit to our platform business in the long run."
Try4se said:

Since Frequency isn't being updated... might as well add mews I find to the boards.
But seriously, this is quite cool. I guess it means they're doing something like making a common OS, like how phones, tablets and even games consoles all run various version of Android and thus use the same apps regardless of input method, screen size etc.
WiiU xL
It won't be out for years, unless it is a WiiU upgrade.