I encode all my sysLocation strings with coordinates. But I do not necessarily want all devices to always show up in the geographical map. Or always show the same devicegroup(s).
Ideally, groups would be listed with checkboxes next to them in the map, providing the ability to toggle the display of said group. Second best would be to tag the group for display or not in the group definition.
Also, being able to define a custom map pin for each group in the map would be very handy.