I have a beta addon available to Pro Pack customers that integrates with the WP Google Maps plugin.
It is a beta addon that connects WP Google Maps and Connections. It allows you to display a map using WP Google Maps with map pins generated by Connections.
This Connector does require the Pro version of WP Google Maps:
The Pro version is required because that is the version that can integrate with third-party data sources.
It is still beta because if you use Connections Categories for filter map pins, you can not use the core WP Google Maps categories on other maps created with the WP Google Maps plugin. And, there were a few bugs in WP Google Maps I found and reported that have not yet been addressed: