I see now clearly. We have a few things that will interest you then.
1) Maps Builder Pro will have a “Mashup” feature. Which will work pretty much just like your current map. When you create a new post — let’s call it Contacts — that post has location information, and you map that information to an existing Map in Maps Builder. Now, everytime you create a new contact, or update a contact, your Map is automatically updated.
2) But your next big hurdle is that automatic syncing with a third party system. We don’t have that in development at the moment. But one feature of Maps Builder Pro will be the ability to have Addons and we are planning on a “Location Feeds” Addon which would allow markers to be generated automatically from a public feed, like and RSS Feed, or JSON Feed, or even a Social Media API. We’re really excited about this feature, but like I mentioned, first things first is to get Maps Builder Pro out the door (this week) then the Location Feeds Addon will come much later.
I think between those two things we’ll be able to get you 99% of the way there. The last leg will just be doing some Custom CSS to match what your theme is currently doing, but that’s pretty straight forward.
Thanks for your interest in Maps Builder!