A map with user locations can be made by using the enabling user location and overlaying a map with a georss user feed.

Steps to reproduce:

• go to /?q=admin/user/settings and enable the location fields for a user in the Mapping kit section.
• the account edit pages now show a location category page; enter lat/lon coordinates for some accounts and check that (the source of) ?q=user/feed contains <georss:point> items
• go to /?q=admin/user/permissions and give the 'access user profiles' permission to anonymous users.
• create a page similar to this one, using the user/feed georss feed on top of a google base layer

E.g. [map baselayers="google,none" layers="users" users="georss|user/feed" width="600" height="300" zoom="1" title="Map of users" /].