I want to be able to delivery based on distance instead of just zip code. However, when I was testing out the DEMO, I did not see the google maps integration is available for testing. Just wondering if this feature is available in California, CA, USA.
generally it depends on the location of your store whether this would work.
that said, it really is mostly only an issue in places such as Kasachstan, Korea etc etc where google is not allowed to supply their services or streetmaps simply do not exist(yet)
generally, this should not be an issue in the US (and I know there are plenty of people that are using it there)