'Useful' information could be the ability to do a 'what postal code am I in now' query based on your current GPS coordinates. Or to pull together your own 'postal code map.'
Usually postal code data isn't that accurate though. The Long/Lat information is usually just a point in the 'center' of the postal code and most postal codes are irregularly shaped.
Comments
'Useful' information could be the ability to do a 'what postal code am I in now' query based on your current GPS coordinates. Or to pull together your own 'postal code map.'
Usually postal code data isn't that accurate though. The Long/Lat information is usually just a point in the 'center' of the postal code and most postal codes are irregularly shaped.
You also need it to generate a "addresses within X miles of Y" type list for a website.
Yea, but you need to combine it with a db of address->long/lat pairs.