I used it several times while traveling, usually to areas I wasn't expecting to go. With a planned itinerary, I would use Modrana and pull tiles while I had data ahead of time. Unplanned, the Nokia Maps app sucked to operate but it did work. You could store vector maps for most of the planet directly on the device. (I have that still, installed, imaged, backed up, etc...)

Sad there will be no more updates. But the archives will work for a while yet, especially in areas with low construction ratios. Next project in TMO? GarmiN900!