Yes, that’s right. I don’t know of the site version of POI management will be retired any time within the next 12 months but if we needed to make any significant changes to our data model these would not be implemented in the /site (asp.net mvc) editor and would instead only be implemented in the app. Yes the app is the same codebase for the map web app and the mobile (installed) app.
You are correct, the miles/kilometers preference was in an old version and I thought it had made it’s way to the new version, but it hasn’t. I could be wrong but I think we only currently show miles/km in the app using the editor and even then it’s just a general indication to make sure you’re not about to add a duplicate. So in short, I don’t currently care enough about miles/kilometres to go to any effort of my own to make changes, but feel free