Tegra really is one of, if not the, most promising mobile/portable platforms currently being developed. Especially now with chips like pascal which can put enormous desktop-level power into a portable formfactor. Really we're only limited by battery technology, someone needs to get on that.
Still not sold on the Switch itself though, at least not yet. Its technology is promising though and it opens the door to a lot of cool stuff in the future. Hopefully Nintendo's next console manages to succeed in their community computing idea that we heard about a few years ago; having a Tegra powered handheld that can then connect with and enhance a static plug-in-to-your-TV charging dock that has its own CPU to "boost the handheld's signal", so to speak, could be extremely nice.
Games playable at lower resolutions and framerates on the go, then when you get home slide it in to the dock for a higher level of fidelity. I think that's what they tried to do with the Switch but didn't have enough R&D time.