I've created a few locations (e.g. home & work), turned on the Location field in my account settings, and have set location for a few of my tasks.
One issue I've noticed is that if I view the map for a 'home' task, then close the map window and switch to my 'work' tab and open the map window again, it is still set at my 'home' location. If I click on the work tab to refresh the page, the map is then updated to show the correct location. It looks like the map refresh is not triggering when you switch tabs.
Second thing, in location settings it is reporting distance in miles. Most of the rest of the world uses kilometers. I figured this might be a Google Maps setting but can't find anything. Can anything be done on the Toodledo side to allow users to set metric distance?