Open source with low data requirements What I find best about this is that the maps are just so small (30 kB for Berlin). The maps are rendered nicely  there are search functions  it can find routes etc. But... why is the """"""""""""""""click-to-find-route"""""""""""""""" feature only in development mode? Location returns """"""""""""""""Unknown location"""""""""""""""". It's the small things that make the app somewhat bothersome to use. Also some additional features could be useful - at least some simple background map  maybe including the most popular POIs  rivers in the cities  tarif zones. But in the end  it's open source  so anywone (even me :)) can help adding those features - adding 1 star for that.""
September 30 2014