This appears to be a bug in our reverse geocoding logic. I'll forward your example to our engineers for further evaluation. In the meantime, if you don't need a street address for the specified coordinates, you can use the coordinate lookup feature of the GeoPlanet Web Service (see
http://developer.yahoo.com/geo/geoplanet/). Here is an example request (you need to supply the appid):
http://where.yahooapis.com/v1/places(30.49...;count=0?appid=[your_appid]
Please note that the comma in the request needs to be encoded as "%2c" to prevent it from being used as a parameter separator.
Eddie Babcock
Yahoo! Geo Technologies
