A couple of weeks i introduced a Plugin which helps the user to enter a postal address in an APEX Form.
Now i present a Plugin which lets you display an already stored address or location coordinates in a very simple and fast loading Google Map Image (png).
If you want you can put a link on this image which opens the address on maps.google.com in a separate Window where your user can interact with the Map.
These are the settings. Easy as can be :-)