It didn't stop developing this. It never started.
The "Quality of Life" shit has been teased by Nintendo for years and nothing had ever come of it, and nothing ever will.
It was simply a buzzword bandied about to tease investors along with in order to prevent them from demanding that Iwata step down.
Iwata died, so it's not longer needed.
The mobile shit is going to be quarter-assed at best, as is their My Nintendo and Miitomo shit (register your account names if you give a shit on the 17th, but it's just another abortion of an account system to replace the existing abortions of Miis, Club Nintendo, NNID, etc.).
Nintendo's job right now is stringing along investors until they can reveal their next console, which is codenamed "NX". Nintendo swears up and down that this won't be a console/portable hybrid, so you can bet your ass it'll be exactly that. Nintendo is a very Japanese company and in Japan consoles are dead, dead, dead. Portables are dying as well. The only games that sell in the Japanese market today are trashy mobile games. Nintendo of America has absolutely zero say in what Nintendo does, so despite the western markets being where Nintendo can make money they will continue to chase after a market that has largely given up gaming.
I expect the NX to be nothing more than a handheld like the 3DS (dual screen or not, who knows, but probably without the 3D) that you can connect to your TV like the failed version of the Vita or the nVidia Shield things. Nintendo's mobile efforts will be side-games and shitty apps no one will care about. You won't be playing a proper mainline Pokemon on your phone unless you're emulating one of the classics, despite the fact that Nintendo would make obscene amounts of money if they let it happen (Pokemon is made by The Pokemon Company, but Nintendo has control and oversight). Instead you'll get an app where you can have your Mii store notes for you, you'll get a Pikachu-themed calendar that does 10% of what your current Google / Outlook shit already does, and you'll get a Pokemon-skinned game like Pokemon Shuffle.
I'd love for the "X" in "NX" to stand for x86, meaning that Nintendo is:
1 - Developing a traditional console based on x86 hardware
2 - Giving 3rd parties even less reason to not port to their platform
3 - Cutting off backwards compatibility with the Wii U / Wii / GameCube (yes, the Wii U can run GameCube games since it's inherently the same architecture as the 2001 console, it just lacks the controller ports and ability to load the smaller discs - homebrew lets you get around both limitations)
But I'm used to Nintendo's ways, and I know whatever they trot out will be a disappointment overall, but worth it for the few stellar IPs you can only get from Nintendo.