Wow, I just got an n800 and this program is awesome. However, for long trips its telling me that it'll take up a ton of data to download it beforehand. If I was to tether it to my Treo, would that mean it would eventually end up downloading the same amount? Also, a little unrelated... I'm shocked at how well OpenStreetMaps has my state (Massachusetts) mapped out compared to the rest of the US, I wonder why that is.