The Google Maps particles does not display the map when you switch tabs. You only get a grey box.
I am using (on my local dev machine) the latest version of all the particles. However, I cannot at the moment upload these to the server. The issue is present in both the latest version as well as previous versions, so it is not related to conflicts between particles.
It also is not related to a conflict between the Gadgets particle and the Google Maps particle. On pages that do not have multiple tabs, the both work fine. It is only on pages that have multiple tabs that the maps do not load when you switch from the initially-loaded tab to another tab.