According to Wikipedia, the 8930 supports clock frequencies only up to 1.2GHz, so unlikely that jolla will use it. I think this is much less of an issue nowadays with the quality openstreetmaps has reached. I'm using almost exclusively osmAnd on android instead of google maps, because of offline capabilities & more detailed maps in my area. Unless one needs things like real-time traffic info or Streetview, it's IMHO equal or superior to the mapping applications from the big players. Also, modRana and Marble are very decent on maemo.