I am looking for a way to do real-time tracking of multiple vehicles (with iphones) at a time.
Instamapper is close to what I need - I can install the app to run in the background of driver IOS devices and then capture the GPS through the instamapper API. However, the updates are not quick enough - only 1 every 10 seconds. I believe I would like to sample one time per second or more.
I ran across this today - http://www.vworkapp.com/ - It is a paid app, looks interesting, although I was concerned because there did not seem to be many existing customers using the product based on the app store reviews.
I like Glympse for my personal use, but they do not have an API yet.
Any suggestions on existing IOS products that accomplish this functionality? If not, any source code that is close so I can make required tweaks?