When the new Garmin Edge 605 and 705 arrive Edge users are going to have to get to grips with Garmin Mapsource maps.
As the 205 and 305 are not mapping GPS units it means the new 605 and 705 owners are going to have an even steeper learning curve to climb.
None of the Garmin 705 bundles I’ve looked at come with a map other than a basemap. Garmin basemaps are about as much use as a chocolate teapot. I suspect they are included to stop you throwing the thing at the wall out of frustration.
Garmin maps are not cheap, the retail price for Topo GB 2 is £150 which when added to the price of your shiny new Edge 705 is a lot of money. I mention Mapsource Topo GB as it is Garmins Ordnance Survey equivalent and if your a mountain biker this is the product you are going to need. Roadies (moi) can use the other maps such as Metro or City Select. All these products can be obtained substantially cheaper on the net or on Ebay. I paid £18 for my copy of Metro Europe V6 so all though not the current version was worth it just to update the Training Centre software map.
You cannot export the raster based Ordnance Survey digital mapping based maps to a Garmin only Routes and in the case of Tracklogs, Courses.
You can download the Mapsource program for free from Garmin.
As you have a basemap with your Edge it will install and at least you will get to see the functionality of the program.
I’ll update this post as I learn more.