Nintendo is rolling out more support for the 3rd party titles, launching a website which is now accepting submissions for the “New Developer Program”. The program caters to Game Developers, Tool Developers, and Publishers.
If you are accepted into the program you’ll have access to the Nintendo Dev Interface, which will ensure you have an optimal development environment for your development team. Both of which will help you get your game ready on time, for either the Wii U, 3DS, or both.
If you’re interested in publishing your game with Nintendo(which, you most likely are if you’re looking at the website) they have the tools to help you get it on the eShop, and even in store.
With the Indie market centralized on the PC(just take a look at Steam) it’ll be interesting to see how many new developers Nintendo can manage to pull in. Both the 3DS and the Wii U have unique platforms to work with, so let your imagination go crazy.