Although it may be a novelty, I also wish the Geode could store and replay my travels.  Could come in handy if I get pulled over.  "See officer?  I really was going fifty-five!"

In terms of current usability, the Geode hardware is very fast and accurate.  Upon insertion, it takes less than a minute to get a satellite fix.  If I switch to another application, the Geode doesn't stop working.  When I returned to GeoView Mobile, the map had my new location on-screen.  The downside of this is that while the Geode is inside, you cannot turn off the Visor.  Period.  Turn off the Visor and it will come right back on.

Fortunately, the Geode lasts pretty long on its batteries.  The battery meter isn't even half-empty (or is it half-full) after several hours of use on Full Power w/ WAAS.  While typing most of this review, I just left the Geode plugged into my Prism and it still is half full.  GeoDiscovery tells me that depending on the battery, you can expect 4-8 hours of battery life.  I think that's a pretty accurate number.

In terms of problems, I did have several soft-resets and even two hard resets, although those were after I first got the module and probably didn't remove it properly.  Since the Geode doesn't turn itself off, I suggest that before removing the module you press the Calendar button and switch to that application to lessen the chance of needing the Backup module.

Conclusion