GPS maps of Russia: OSM vs. Garmin City Navigator

[chris]

Hi guys
Am in the process of getting my sh!t together ref planning my summer Trans-Russia trip. I've downloaded the Open Street Map Russia (and Mongolia) map from the official site and it works on my PC in Mapsource and on my device (60csx).

I have also viewed Walter's waypoint list (many thanks for sharing this!) in Mapsource with OSM as the basemap. There seems, following only a very cursory inspection, only one yellow line leading from western Russia eastwards to Lake Baikal and beyond to Vladivostok (my route, due to time constraints will be the most direct road St Petersburg to V-stok, possibly also missing out Moscow, so I don't have a problem with only having a "plan A"). Walter's waypoints for fuel/food/accom are mostly on this line (road). My question is: How much detail is missing from the OSM map compare to real life?

Tying in with this, I have also a acquired a copy of City Nav Russia that I loaded onto a different microSD card and seems to work fine on my device, but won't load on my PC in MS. Has anyone used CN-Russia for navigating, particularly, in eastern Russia? How does it compare to OSM-Russia?

FWIW, I also have one on Tony's paper atlases (thanks again for organising this) and a 1:2.000.000 overview map arriving in the next day or 2 from Amazon.

Thanks for any input.
cheers
Chris