The name makes it seem like it's related to the MicroPython project, rather than just written in it, which feels slightly misleading to me.

In a way, MicroPython already is an OS, in that it provides a bunch of services (filesystem, network, scheduling). It's up to you whether you want to access those through a script or a command line (repl)

It looks really nice, but agreeing on the naming - it's not really an actual OS, more like a dashboard toolkit, or a set of widgets.