収束ゾーンでのライフ: Life in the Convergence Zone

You mean, the better mobile behaviour? Because Navbar 2 is included, and there are some changes, mostly for neatness, and some which are mobile-specific.

But that aside, there is are plans; I have a project called Navbar 3, which includes Navbar 3 for Mobile. Navbar 3 is a set of swipeable panels. Here are screenshots and a design document, which is all that exists so far, but Denise is heavily interested. Here are docs and screenshots for the desktop version.