Nintendo is going to make a lot of money with smartphone games. A delay of a few months really doesn't mean much in the long term scheme of things, it's not as if they are making iPhones/Android phones and have to support the entire ecosystem basically on their own like they do with consoles/handhelds, so I don't see the big deal.

The big deal is they have botched yet another new platform launch and underwhelmed even with what they will eventually deliver. Like the 3DS and Wii U launches. They haven't done anything that really wowed people for a LONG time.

Delaying their mobile debut only to release 'Miitomo' as their sole debut offering is botching it.

Right..  But it's Nintendo being Nintendo. The average investor isn't well educated towards the way Nintendo does this. It doesn't matter if they do things the way investors wants. Next year when they start announceing the revenue they are getting from mobile investors will heavily purchase nintendo stock.

Nintendo's stock has already begun to recover. If the current upward movement of today isn't erased by a late day pullback what you have is a confirmed bottom 3 days ago and a fully formed swing point on the daily technicals. A swing point is typically defined by 2 strait days of high highs and higher lows. What we would have is 3 strait days of higher high and higher lows.

It may have already been said, but, I'm not going to read through all of the posts. I just want to point out that this is a drop in share price and nothing has actually been lost. The cost of a share is down here and that means you can get it at a lower price or if you are a holder it may be worth less than you purchased it for, perhaps recently. This price is a perceived value at a given time. It's basically a good time to buy.

Not that it matters too much, but still surprised to see the mobile delay had such a big impact to stocks :/

Yes, because diehard Nintendo fans who buy $50 games three times a year know WAY more about how the company operates than people putting tens of thousands of dollars into the company. 

It's a game that uses Miis so that you can enter prepackaged comments about stuff you like to do as an ice breaker.  If you don't think that sounds lame, I don't know what to tell you.

The problem is that they keep delaying everything. First Zelda, then Star Fox, now their mobile app (underwhelming to some). During the gen they have many other delays, low support and low sales.

Do you want to see a bigger drop? If they announce NX for 2017 then you'll see decline deeper than the hell.