I would expect the answer to be no. If Maps can do turn by turn with voice guidance out of the box on the N9, and it seems like it will, then it makes no economic sense to release for the platform given it (the N9) probably wont see much mass appeal once it finally goes on sale.

Although Sygic has a fairly decent UI for what it does, depending upon where you live the available maps can be a bit of a let down. I'd pay for it - but only if there was some way I could use OSM, Nokia, or Garmin maps on it instead.