The nostalgia I have for 2009-2011's webOS, as a former app dev for the platform and its embrace of the Web Platform, is still very much real to the point that I keep my Palm Pre 2 dev unit behind me in my home office. Still charges and boots just like it did back in 2010. I'd love to see something with the computing power of the present try it again (and I'm aware React Native exists), but my expectations of it ever coming to fruition are rather low.
Aside: Seeing MagSafe chargers for iPhones these days makes me chuckle. Also a webOS innovation from back in...2009.