Would be really hard to launch a new platform. Even if its excellent on its own unfortunately it can't survive without a big app catalog.
https://medium.com/@bfrancis/the-legacy-of-firefox-os-c58ec3...
A phone that doesn't let you speak to your friends, family, and coworkers is going to be a tough sell. Getting all those from the get go, without a large user base to motivate the developers, is going to be a tough sell.
Aside: Seeing MagSafe chargers for iPhones these days makes me chuckle. Also a webOS innovation from back in...2009.