The underlying principle is more or less the same as google street view (immerse the viewer in a complete panorma) but, this is something alltogether different. First, the quality is (for the moment) uncomparable. Second, you are not limited to the streets but an found pictures taken on a building top, inside an airport or a train... This could be a very usefull respource for scenery related researchs. Plus, you can actually visit some stations and or yards (like JR Omiya yard).
I hope you'll like it... and that nobody allready gave this link somewhere around here.
http://www.360cities.net/search/Japan/
