In a flip-flop, Nintendo decided in March 2015 to make a foray into smartphone gaming. Iwata wanted to create a smartphone game typical of Nintendo under his own initiative, but the ailing president had only limited time left to do it.
Even after undergoing surgery in June 2014, Iwata said, "I still have unfinished business."
He made his last public appearance at an annual Nintendo shareholders meeting at the end of June 2015 before passing away two weeks later.
He continued to work in a hospital room until the last moment, using his favorite PC and exchanging views on "Pokemon Go" with Tsunekazu Ishihara, the Pokemon Company's president and his close friend.
Iwata had an unshakable belief in his company's products. Many Nintendo fans are children, so he was critical of conventional smartphone games.
"Children can enjoy 'Pokemon Go' without spending too much money. This is probably what Iwata-san aimed for," said an executive at a game-related company who knew Iwata well.
**********************************************************
Source: http://asia.nikkei.com/Business/Com...craze-watchers-wonder-Whither-Nintendo?page=2
**********************************************************
EDIT: FOR SKEPTICAL PEOPLE WHO DON'T BELEIVE THIS.
Mr. Ishihara: Thanks for taking the time out of your busy schedules to come here. Today, I'd like to announce a new Pokémon project.
We haven't really done this type of formal press conference before, but for this project in particular, I wanted to speak to you all about it directly.
To tell you the truth, I have been working on this project for about two years along with Nintendo's Mr. Iwata, and I really hoped we could make the announcement together. That desire is part of why I decided to hold this conference today.
Source: http://www.pokemon.com/us/pokemon-news/news-from-the-pokemon-go-announcement/
**********************************************************
EDIT 2 : For people who doesn't know who is this man, here's a resume (video)
https://youtu.be/k4cJh2YgrKE