I think Nintendo did a great job unveiling the Switch, and the Nintendo faithful seem excited, so I guess that's something, but I have big doubts as to its market potential. The video shows off all of these potential use cases that really aren't that believable. I understand that they are supposed to be aspirational use cases, but still.
Outside of the Nintendo faithful and some elements of the PAX crowd, I don't see less committed gamers being drawn away from the smartphones and tablets they already have with this. Hardcore console and PC gamers won't care because the system isn't powerful enough for AAA third party games. Don't be fooled by Nintendo's list of supporters... the only way this gets any meaningful, long-term third party support is if it actually catches on as a 3DS replacement. And speaking of that, I have to wonder if this will be the only form the system takes. Since it uses small game cards like 3DS software, I kind of wonder if Nintendo will later release a smaller, truly portable version of the system with a smaller screen and better battery life that plays the same games or if this hybrid console will be the only form factor.
Anyway, back to what they did show: I really like the look of the new pro controller. It shows they're listening, and looks much improved over the Wii U pro controller. The puppy dog JoyCon grip also looks nice for those not interested in springing for a pro controller. I hope they actually let you boot games off of SD cards this time around. The 3DS allows this, but for some reason the Wii U requires an actual external HDD if you run out of internal memory, even though the system has an SD card slot. I will never understand this decision. I also hope the base unit has an ethernet port so you don't need the USB adapter again. Nintendo said more hardware details will come early next year, so hopefully we'll get answers. They also won't say whether the system has a touchscreen, whether the JoyCon pieces have motion controls, or whether the system is easy to port phone/tablet games to, but all of those things are rumored to be in the cards. Word is Nintendo didn't address these rumored features in the opening video because they wanted to focus on core Nintendo fans first. Smart.
As for me, of course I'll get one at launch because I have no self-control when it comes to new Nintendo hardware, but if I was a more rational purchaser, I'd probably be more curious than motivated to buy. I have all of the great Nintendo Wii U games, but I barely play them compared to the time I spend playing indie games on PC/PS4 and the occasional AAA third-party title with a good feedback loop (previously MGSV, now SFV).
Lastly, if this is intended to replace the 3DS as well as the Wii U, there had better be a way to transfer StreetPass progress over.