Don't know if someone but me notice that. Goople Maps is ajax enabled now. I just tested it in a typical richfaces application with tabs and so on and on first glance it works.
I created
http://jira.jboss.org/jira/browse/RF-1581
because it would be great not to code the google map api javascript code myself.
I know, there are many TODOs for 3.2.0. Anyway, it is possible to handle this, too? :-)