If anyone IS interested in checking this out, you can go
here. It's completely in Japanese so you probably won't be able to understand most of it.
It's probably not a game that I would get, but maybe there's someone interested out there.
There is a bit in this Direct that I think may be explaining that there will be two types of Nintendo Directs: The longer ones, which is all we've had so far, and the shorter ones like this one. I can't understand Japanese but that's kinda what I'm guessing Iwata was explaining.