I've never had it with this app, though I have with Mappero and BarrioSquare. I'm betting it's more a GPS lock bug than a modRana bug. User processes shouldn't be able to hard-lock the device.

Awesome... One question though: Does this clean up the existing map files, or is that an exercise left to the user? I'll find out in a minute, and I know it's only an rm, but something you may want to mention. Thanks for all the great work on this! I've been using it pretty regularly, and it's been a real life saver at times. Now if I could only save where I'm at as a POI...

Two small things to consider:
1> When presenting "miles until turn", maybe the user would prefer only a few digits of precision? 0.34 miles is fine, vs say 0.3405938451 miles.

2> Another e-speak filter for numbers... apparently "Turn right in 0.3452943523 miles" turns into "turn right in miles", vs "turn right in zero point three four miles"