Quick answer - no. In order to route and reroute offline, the maps have to be vector based, and none of the maps available is. Those maps are proprietary, and commercial, so you have to pay for them. Since MM is free, I don't think Gnuite is going to pay for tens of thousands of copies of vector maps from NavTeq. If you want a full-fledged GPS, you have to pay for it. The maps MM uses are raster maps, freely available, and they cannot be used for routing. It's just not possible. There is one free app that does routing, using vector maps from the US Census Bureau, but the data isn't complete, and knows nothing about one-way streets, for example. Using those maps, you will often be routed the wrong way on an interstate or any other one-way street. RoadNav, the app in quesion, is a Linux app, but AFAIK it hasn't been compiled for Maemo. I've used it on my EeePC, but that wasn't worth the trouble. I have full-blown GPS mapping apps with routing and autorerouting on my Palm, and in a standalone driving GPS, and they work well. I use MM for the nice satellite photo maps, so I can see what I'm driving by, and the other devices for actual routing and directions.