Soundwave on 26 March 2015
I think Nintendo said DeNA will help with the network, but it's something Nintendo themselves is designing and running. They made it sound like DeNA's involvement was more of a just in a secondary role.
The main reason DeNA is there is because Nintendo is not used to/can't supply the daily smartphone content that would keep people coming back to their apps, that's their main role.
Nintendo was moving in this direction even before the DeNA deal ... remember Miiverse being on PC/smartphones/3DS/Wii U/etc.
