Want one! The wife needs something bigger than a Focus to haul our two kiddos around. Expedition is a bit out of our price range unless we wanted to get old and we don't really need another car that gets 13-15 MPGs. So we are looking at exploders and aviators (since I like flying airplanes too).
I always liked the original Navi's when they 1st came out, but the current model is rather U G L Y in my opinion. If I were looking to buy something like that I'd go the Aviator route mainly because I wouldn't want a full size SUV.