Not sure about maemo and gnome-vfs, but on my linux machine, doing a wget on kh0 resolves to one of three different IP addresses, so it's already automatically "revolving" around different IPs.

No, the real reason why it sometimes fails to work is because gnome-vfs's asynchronous download functionality sucks. That's why the next version of Maemo Mapper is going to use libcurl3 instead - it appears to be much more reliable, _especially_ with terraserver and other slower servers.

I hope to release that version this week (weekend at the latest), and it will also include altitude in the track data.