The Nikkei writes that Nintendo wants to use smartphones to expand its potential user base by spreading information about new game releases, i.e. by using video to introduce future titles. (This will probably happen through some kind of official Nintendo app.)
In addition, Nintendo is said to be planning to put so-called “mini games” on smartphones, playable demos of console games – content that can only be purchased in full on Nintendo hardware. The reasoning here is to give smartphone-only players a taste of the experience without making the actual game available on non-Nintendo devices and convert these users into Nintendo customers.
So close, yet so far.