It's brilliant in so many ways; not to mention plug-ins like Google Earth. But it does seem to be a little flawed. If you ask for driving directions from Sydney Australia to New York, NY, you'll get the usual highly detailed street directions .... try it for yourself.
You'll get told that it is a 56 day drive, but instruction 123 on my test was "kayak across the Pacific" (from Tokyo to Hawaii) . I want to know why I would have to kayak, when there's perfectly good luxury liners offering passage. Is it something to do with carbon footprints, or an economy option?