Koreader is said to run on the rm2. The ddvk hacks are pretty good either. I don't know about the state of alternative launchers though.
The onyx boox have bluetooth and you can connect as keyboard to it and since they have access to the play store you could probably also run vim on it. This is something I miss on the rm2.
The onyx boox have bluetooth and you can connect as keyboard to it and since they have access to the play store you could probably also run vim on it. This is something I miss on the rm2.