without traffic, that's just doesn't work well enouhg
Yeah, that's fair enough for most of us.
Openstreetmap data isn't nearly as complete as google maps, to be sure. However, like a number of other FOSS and community-driven apps, there's always something I need to either live without (and in my current rural setting, that is traffic data), or I work around it.
One thing comaps is really good at is recording GPS tracks out-of-service, which google maps SUCKS at.
Ordnance Survey looks great! Too bad I'm not in Britain.