I mean, if someone said, "I've successfully ported Vim to Android!", my first thought would be, "Why in god's name would I want to run vim on my phone?"*
* Ruling out, of course, someone plugging their phone into external KVM.
This mode seems suited for mobile UIs, so that flexibility should get them pretty close to being convergent. There probably still need to be some adjustments to make it really usable on mobile, but a lot of the work has already been done.