Yeah it would certainly require some serious thought. There could be two possibilities I can see.
1) Nintendo realise that PC gamers will be PC Gamers and buy on PC anyway. Therefore why not try and sell them a Switch too. And to follow this, they basically see it as a value add for console gamers to play a few PC games too.
2) Nintendo have a PC store too where your games are Switch streamable.
From a purely personal point of view, I'm predominantly a PC gamer at the moment who will pretty much buy all multiplatform games on PC by default. For me, the Switch is the first gaming device which would actually give me a reason to pick a game up on anything other than PC, as it would allow me to play it either on a TV/monitor or in portable mode. I wouldn't change to buying multiplats exclusively on Switch, and I don't expect that everyone is like myself, but there should, nonetheless be a niche of PC gamers who see the Switch as an actual alternative that would be worth buying games on instead in some cases.
They would be pretty much killing a lot of profit from that niche if they allow them to stream games from PC, evaporating a lot of the incentive to change their purchasing patterns over to Switch. It just doesn't seem like a sensible thing for Nintendo to do.
Though the Pikmin subtitle will be Shadows of Olimar, not Revenge of the Pikmin.
I'm imagining a game where you play as the pikmin king, leading your people against the ruthless tyrant Olimar, who landed on your planet and waged a brutal, destructive war, taking thousands of trusting peaceful pikmin as slaves and sending them to their deaths in combat, only so that he could pillage everything of value from the land and abandon a planet now littered with mangled corpses. I assume the story would be a treatise on the inhumanity of war and the futility of using it as a means to promote peace, as the pikmin king gradually realises that he is turning into Olimar himself, killing so many of those pikmin he once swore to protect.
Edit: From Software game, perhaps?
Yeah, so basically lie about it, lol. Ok sure. You could simply achieve the same thing by giving the same presentation, without claiming 1.5TF etc. Just say how efficient it is, that it can deliver console gaming on the go but don't mention any numbers. Show a 3rd party multiplat game running with near PS4 graphics and that'll do just fine. Or you could also state in your press release that it is capable of 1.5TF in fp16? I mean, people who know what it means, won't be fooled. People who are interested in this kind of information, will find it anyway. So i don't see the point really. But ok. The people Nintendo needs to convince in the first place, is the 3rd party devs and publishers, imo.
I'm saying they use PR spin, just as every other similar presentation does, whether it's for gaming hardware or phones or PCs or any other consumer electronics. The proportion of people watching these things who actually know what the specs mean is absolutely minuscule, and the rest will happily focus on the aspects of the specs that Nintendo wants them to focus on. This isn't exactly some radical idea, Sony put on a presentation in 2013 to promote the first console ever to be released with a less powerful CPU than its predecessor, and huge numbers of people came out thinking that moving to the x86 instruction set was a genius decision which would prove the key to creating powerful next-gen video games. We still have people today who regularly just assume that Switch using an ARM CPU completely rules out ports, which all comes back to Sony's "turbo-charged PC architecture" presentation.
If it works like 3DS, the norm is the saves would go on the game card while updates would go to the internal storage or SD card. Though I'd theorize games that are particularly freewheeling with their amount of saves and ballooning save file size like Skyrim might allow saves off the game card.
I actually doubt that Switch game cards will have save memory on them. We have to remember that the DS/3DS game card standard was designed back around 2003/2004, when in-device storage was minuscule and the notion of cloud saves would have been considered, well, pie-in-the-sky. Games effectively had to save to card, so they designed an interface that could handle saves, and they designed the cards to accommodate a separate flash chip for saves to live on.
Judging by the video, Switch game cards use a completely new interface (the pin count and location is different from DS/3DS), so they get to rethink the assumptions they made over 10 years ago. Firstly, the Switch itself will have onboard storage, and even 32GB would cover a card-only gamers saves without issue, but they'll also be allowing microSD to complement it. Secondly, Nintendo have been hinting about cloud saves for the past couple of years, so save games should be able to follow you from device to device even without being stored on the card. Then there's the interface, as a read-only interface will be simpler and cheaper to implement. Lastly, and most importantly, is the cost of including flash memory (and the necessary control logic to accommodate it) on the card itself. This isn't a trivial cost when manufacturing hundreds of millions of game cards, and by eliminating it they can make higher capacity, faster game cards cheaper, making the system more attractive to third parties. In fact, even aside from that, it would be substantially cheaper for Nintendo to add 1GB of storage to Switch's internal memory pool than it would be to include separate 128MB flash chips in each of the 8 games that the owner may expect to buy.
On a completely separate note,
the first device using ARM A73 cores was just launched today (and, for what it's worth, the second to use TSMC's 16FFC process). I don't expect Nintendo to use A73s in Switch, as I believe the device was originally intended to launch around now, and it would have been cutting it tight to to try squeeze them into that timescale. Nonetheless, if Anandtech to a similar analysis of the Kirin 960 as they did for the 950 it will give us a good idea of the power savings of 16FFC and any performance/power differences between A73 and A72.