I also would have liked to use OSM with Memory Map. I have found quite a good alternative.It is QUO aka Mapyx they allow free use of their mapping software and now as an alternative to them selling you Ordinance Survey Map data they have it set-up to display our OpenStreetMap and it will give us OS Grid reference and create routes and connect to a GPS.

I also would have liked to use OSM with Memory Map. I have found quite a good alternative.It is QUO aka Mapyx they allow free use of their mapping software and now as an alternative to them selling you Ordinance Survey Map data they have it set-up to display our OpenStreetMap and it will give us OS Grid reference and create routes and connect to a GPS.