this is definitely the best review of Cyclo 505 available. Thanks Raqball!!
I'm still sitting on the fence.....while magellan touts that they use OSM maps i think it's a bit misleading as users can't update their units themselves like u can with Garmin/OSM maps. U are still dependent on magellan to provide the cyclo-OSM maps. Cyclo 505 users can't use the normal OSM maps. And u can't use another country's OSM maps for free - again it's only available via Magellan (although i think currently they haven't figured it out yet how to make that available). Probably with a charge. Like they do with all their maps.
Magellan has always had a closed map system.....as much as many hate Garmins....the Garmin maps are very open allowing the users to update using OSM maps....which i find have better trails and off road accuracy. For normal roads the official Garmin is very very good - as good as any but off road trails the OSM kicks in for accuracy as it's maintained by actual users.