AhmedF - 5:06 pm on Jan 16, 2008 (gmt 0)

The average user has no clue what their ZIP+4 is. I agree its a shame in a way - each UK postal code covers an (average) of 16 houses, and I believe each Canadian postal code covers the equivalent of 2 blocks (that one I might be slightly off in).

Until we have location-aware applications, honestly the best solution for pinpoint is their full address (and then remember it so they do not have to re-enter it).

Still - even ZIP itself is not very popular. More people use neighborhoods as their location than a ZIP code itself.