The version number was a verbal quote from the TomTom support person I spoke to. I think her name was Vicky. She directed me to the map download area on Home and specifically said that the North America map set is 6.75, and can be purchased by anyone...regardless of geographic location. Both the 6.65 (USA & Canada) and 6.75 (North America) map sets are available there.
Since I only went up to the point where I was requested to enter a credit card number, I never actually got to see the delivered version. However, the 6.75 purchase was smooth sailing up to that point.
The map size and price difference between the two versions is reasonable evidence that they are not one in the same. The level of detail in the maps may account for some of the difference, but from what others have said, there is a notable improvement in accuracy as well. Is it worth the $117 price-tag for the North America maps? For me...probably not. I'm pretty much convinced that though the Tele Atlas maps may be pretty good, NavTeq has a distinct home-court advantage at the moment. My next GPS device will definitely have NavTeq on board.
Wiley, I don't deny that they told you that. However, when *I* talked to a customer rep, they told me that the larger 1.4Gig North America mapset IS THE 6.65 VERSION for USA customers. Also, you *cannot* tell the difference by file size alone because there *is* a 6.65 version of the 1.4Gig North America map. Other members have also mentioned this. Add to the fact that they don't tell you the version number via the HOME application, I just didn't want to chance it.
That being said, I *was* able to order the 6.75 North America map via the UK TomTom web site ( it does list the version ). Make sure you select the GO 910 to get the North America map in the list. Even though the checkout process doesn't list the USA as a valid country, the credit card verification process must not check the country....because it worked great for me! ( I selected the US virgin islands as my 'country' )
.
In my opinion the 1.4Gig North America mapset seems to be far and away better than the much smaller 'USA/Canada' mapset included with my unit. I now see quite a few more 'map details' than I saw previously ( lakes, rivers, etc..although still no park boundaries ), the POI coverage seems to be much better, and the road coverage in my area is FAR BETTER than the original USA/Canada set ( although this is probably due to the newer map version ). Wiley, you might want to check into getting the v6.75 maps...they really do seem far better than the older ones.
I really think TomTom committed a major blunder by stripping down the maps to fit in the 1G footprint of the newer units. Plus the fact that TomTom support insists that the USA/Canada maps are NOT stripped and are the 'latest mapset' really ticks me off. Well, now I can prove it.
If any of you want me to check on any 'map detail' differences, please let me know. I can easily switch between the original USA/Canada maps and the North America maps by removing the SD card.
Thanks all for your help!