I was taking a really close look today at Google’s StreetView, and the fact that they APIed it is (especially technologically) quite marvelous. First maps, then UK geocoding, then driving directions, then static images, and now Street View?
But Yahoo may have beat them out (at least for now). The Yahoo Internet Location Platform is pretty damn amazing. Over 6 million locations, with proper parent/child nodes. Informal space just got a giant shot in the arm.
50,000 limit is pretty decent – I need to find out Yahoo’s stance on caching on your end.