Gnuite,
Thank you so very much for taking the time to elaborate on the Maemo Mapper app. I really appreciate it! Please permit me to ask further:

Approximately how much memory will be required for a reasonably detailed map of the Denver, CO area (for example)? I don't need the whole state, just Denver and it's surrounding area. Will I need to purchase an addtional RS-MMC for that?

Will the 770 with Maemo Mapper function like an off the shelf GPS device (like a TomTom or Garmin)? That is, will it display directional arrows indicating when and where to make a turn? Will it give voice directed turn-by-turn directions? Will it show on the map an icon pinpointing my current location (car)?

Thanks,
Neil