The question remains will it flop as bad as the WiiU? The Nintendo switch is now a handheld, a home console and a VR headset. Third party are never going to support the Nintendo Switch unless it was a massive success like the Wii and even there the Wii got limited support from third parties.
Nintendo as a lot to prove and I for one will not be an early adopter on this one. I know it's about software when it comes to Nintendo, but that wasn't enough to save the WiiU.
As a developer myself, I would say that it isn't as much about the sheer volume of sales right now, as it is the clarity of which games can be made, what the developer support will be like, and Nintendo's message to the end user of what they can expect.
Things that are already MUCH better than the Wii and Wii U:
- JoyCon functionality and ProController functionality for traditional games is identical. You don't need to support multiple controllers to satisfy a segmented userbase.
- 2 player out of the box. Much more safe now to design a game that requires two players to be fun.
- One screen. And CLARITY that the Switch screen is off and unusable as a touch input when docked.
- No sensor bar. If a game is to use pointer funtionality, it will be Skyward Sword style. Much better and more understandable to users. Also for the setup process.
- Nvidia GPU. Say what you will, it's just going to be easier to predict what you can get.
- True portability. There will certainly be a draw to the full version of a game that also is portable, regardless of whether the AA and framerate isn't exactly as good.
So while some things are still question marks, the outset is pretty good.