On Thu, Jun 28, 2012 at 2:57 PM, Mark Jordan <[log in to unmask]> wrote:
> What's the best (i.e., most standardized and flexible) format for storing single-point geocoordinates?

Definitely stick with decimal degrees (-122.61458), because dealing
with minutes and seconds (122° 36' 52.5" W) is a real nuisance and
unnecessarily complicates everything.

If you are looking to embed coordinates within a data format like
JSON, you might want to look at GeoJSON:
    http://www.geojson.org/geojson-spec.html#id2

Cheers,
Keith