Miitomo, Nintendo's first tentative step into the world of mobile gaming, will be ceasing operations at 7:00PM AEDT on May 9.

So far, Nintendo's mobile offerings have been pretty good. They're also frustrating.

Video: The latest in a series of Japanese promo videos for Nintendo's mobile social networking app demonstrates Miitomo's ability to bring plucky teens together in song, which unfortunately isn't a real thing.

My Mii's popularity in Nintendo's mobile app, Miitomo, has been capped at level 20 weeks now. With my waning interest, I find myself visiting my Mii less often. It's OK though because I had some great fun with friends and acquaintances on there. I'll cherish their silliness forever, especially their TMI moments.

Miitomo, Nintendo's sophisticated new smartphone app, is a hybrid of free-to-play game and social network. By combining aspects of each, it becomes a disarming information gathering project. On its face, it makes a game of asking trivia questions about your friends and shares the answers with you. Under the surface, it uses the framing and rewards structure of a free-to-play game to encourage you to expose personal information to as many people as possible. I worry that Miitomo makes eroding your privacy into a game.

Miitomo, Nintendo's Mii-driven social network, is tearing up the app store charts right now with millions of new users on day one. The app's explosive popularity is simple to explain: it's hilarious to use.

Nintendo's first social app for smart devices, Miitomo, will be released in Australia on March 31.

Three years ago, the very idea of Nintendo creating an experience solely targeted at smartphone users seemed like an outlier, bizarro-world possibility. Yesterday, Nintendo released Miitomo in Japan for iOS and Android devices. Here's what it looks like.

Today, Nintendo announced pre-registration for Miitomo, Nintendo's upcoming smartphone app, begins on February 17.