I'm planning a project using Omeka and WordPress. On the WP side, I'll be using the wordpress-geo-mashup plugin(http://code.google.com/p/wordpress-geo-mashup/)to geolocate select WP posts across several categories. I will probably also use the WP plugin to map Omeka Exhibits by implementing the Page Links To and Category Visibility plugins. On the Omeka side, I'll be using the Geolocation plugin (http://omeka.org/codex/Plugins/Geolocation)to map items, focusing for the time being on displaying the map on items/show.php only. However, in the longterm, I'm hoping to combine data from each platform into a single cross-platform map.
So the question is, how can I accomplish this exchange? What is Omeka's method of outputting geodata and (how) can I pull it into WP? Or can I send WP data --> Omeka-based map?
The above is my plan but I am in no ways tied to it (not yet at least), so if someone has a better idea, let me know. Perhaps an intermediary map-only platform that can read from both?