@otsaloma
My previous phone was a N900, and I was using Mæp on it all the time (I love maps). I try Marble on it some times but I feel less responsive and not as convenient as Mæp. I don't want to start a troll here. Marble is a great software and surely well coded, I didn't give a look more than that.

When I decide to switch to a Jolla, it was also because Mer provide the kind of libraries I'm accustomed to (Glib, Cairo, …). So I was wondering if it would be possible to port Mæp which was working like a charm (debugged and so on) on my N900 to the Jolla device with a minimal work load. It happened that it was the case, Qt and Glib interact pretty well together and Cairo also. So Mæep-qt is here, using the code of Mæp with a QML interface.

I'm coming from the Gtk world, so I don't know about Qt mapping possibilities. I pretty sure it has good one, but I didn't try.

For osm-gps-map, in fact, Mæp is using it. The map rendering and tile fetching by it.