Mario run is gonna cost £7.99 and requires always on internet connection.
I think that will put a lot of people off buying it.
Nintendo... always coming up with decent ideas and then mixing them up with terrible ideas. Regardles sof the way you look at it, £8 is far too much for a smartphone game. Most of them cost around a couple quid, the paid ones at least. What's more is that the mobile-game market is heavily competitive, with a lot of cheaper offerings and free ones at that too. What's not to say Nintendo won't have micro-transactions in their mobile game, they've done it before with a few 3DS titles.
The always on is even worse for mobiles IMO. Not everyone has data and even then, not everyone has a lot of it. And even the few of us that do have unlimited data, you don't always get a good connnection. Imagine your game you paid £8 for stopped working because the car drove into an area with poor signal (someone in the passenger seat playing the game).
Also, I know I've just added to the problem, but can we please stop talking off-topic, this is the Nintendo Switch thread and not the Nintendo anything thread.
I've been playing Pokemon Battle Revolution (Pokemon Stadium on the Wii) and it got me thinking as to whether there will be a similar game on the Switch, the WiiU never did one. But the generations before all had at lest one Pokemon Stadium-like title. It could be integrated with Pokemon Bank very well.

Especially if it turns out to be a big hit.