One key aspect of whatever this QOL thing is going to be, its going to be cheap for the low entry price I presume Nintendo knows they would have to hit. So any dreams of Tony Stark level AI surfaces telling you your body fat percentage while showing you the weather on your jogging route is out. Iwata has left it so undefined its hard to understand what on earth he's getting at since if its not a "wearable" its... a what? Cant be furniture or personal gym stuff because thats massively cost prohibitive. A micro-console like the GameStick which plugs into your TV, has pedometer functions, and maybe also plugs into a Wii Fit board?
The problem is of course iPhones and Smartphones and wearables are all massively ahead in this area already, never mind the entire decade they have on Nintendo's antiquated understanding of OS and services. What use is one of these devices if it now even lacks the "also plays games/entertainment" angle? Nintendo is pledging to divergence once again in an era of almost total device convergence. Its patently ridiculous and once again reveals how little theyre aware of the tech world around them. Things have changed vastly since the DS and Wii Fit's fortunes.
5-6 Years later: QoL venture fails spectacularly. Nintendo's hardware sales continue to experience steep decline, Iwata forced out and replaced. Never say never.