The pancake (http://techcrunch.com/2009/06/04/introducing-the-pancake-a-l...) and the city-scale of things make moving on streets more tolerable (though Legoland is not bad: http://maps.google.com/maps?q=legoland&hl=en&ll=33.1...), what's the interface for person-scale, cramped interior navigation? Until there's a solid answer this doesn't seem very enjoyable.