Pro Sites and Google Mapping

Hi

As per the awesome work done with buddy press profile mapping and google maps. See http://tradr.com/members/

I am looking for the ability of mu sites (that are pro sites) to have a field in their blog settings, where the owner specifies its location.

Then, a short code could call for a map with all the pro site locations.

Automatically, just like what happens with http://tradr.com/members/, on the main site for the blogs directory, a map would show all the sites.

Is this possible?

Cheers,

Johnny