GAF should be ecstatic at this news.
Nintendo is finally saying that they want to take all the effort they put into attracting casuals with Wii Fit U, Brain Age, Touch generations, etc. and refocus those IPs on a new third platform that is also device-agnostic, and refocus their video game business on core content going forward.
Basically (
http://www.nintendo.com/games/touchgenerations ) will be sold as services on their third pillar - most likely a tablet with lots of add-on devices like the Balance Board, cameras to monitor heart-rate, etc. They will probably allow people to use their own smartphone as well instead of the tablet but preserve the best experience for people buying their own tablet hardware.
That frees up next-gen Nintendo gaming hardware to be more focused on games rather than casual stuff. They repeatedly emphasized that they are in this to keep building traditional platforms and packaged games. They categorically rejected F2P of their tentpole franchises.
The next Nintendo console will likely be more targeted to traditional gamers, while their handheld will continue to build on the kids market that has really kept the 3DS alive. With a single user ID they can try to cross-sell devices for different needs rather than having to do one-device fits all.
This is exactly what many people wanted Nintendo to do - build games for gamers - build QOL stuff for QOL-specific platform - rather than trying to mix the two and screwing up both at the same time.
The only people disappointed by all this news would be port beggars that desperately wanted Nintendo content for their console of choice. Really, if you are a Nintendo fan, you got everything you wanted in this Q&A - and it looks like Nintendo finally gets that they can't build the same device for every audience and wants to stop building things like the Wii U that target a casual to hardcore audience without satisfying any particular audience in question.
Now Nintendo needs to outfit the QOL device with a story/cartoon/game creation app based on Mario Paint that helps people learn how to code and make games that can be played on Nintendo gaming devices, market it to impressionable parents who want their kids to be able to code, and they should make billions of dollars.