Just to chip in, I have not used modrana in a while (have not taken a long drive) but I too experienced multiple lock up have to remove the battery issues. I think if I recall it happened mostly when calculating a route.
Ah.. I was talking about renaming the saved gpx files made for when you get a route from online, not the logs you make yourself, though that is handy to know too.
What format does it come in from the route server as? Maybe you can just save it in that format (with it's own extension) for later loading. I wouldn't mind having a difference between routes and logs, especially if I can make a route (say on Goggle maps) and export it in some way that modRana would understand.
Looks nice, except for one tweak. I was thinking the alerts would be more like 10k and 2k out, vs 2k and 1k. When you're going 100kmhr, 2k isn't much warning, especially on a multi-lane highway. It can take 3 or 4K just to get over to the proper lane sometimes.
In the not too distant future (Thanksgiving-ish) I may have some time to work on porting a tile server to the N900. If so, it could act as a local server (backup) for non-networked usage. I've made some pretty extensive changes to an opensource tile server for a group I've been working with, and think it may be pretty doable to get it up and running on here.