There are some open issues for the 'GMap extended' plugin.
Some of them are true issues from users - some of them are 'backport requests'.

I propose to stop the support for this plugin. This is why:
- I can't find any documentation of the use case/purpose for this plugin.
- According to the repository history, it is a 'Work in Progress' by Brandon Bergren in jan 2011. (Which seems to be the previous name of bdragon).
- According to the few issues in the issue queue, there seems to be little interest.
- There is lots of feature backlog comparing to the current normal plugin.
- There is no effort done yet in porting/testing this module for API v3.
Perhaps the current interest will show end of may2013, when API v2 support stops.

These are the issues that are recently triaged as Extended issues:
http://drupal.org/project/issues/gmap?component=gmap_plugin_style_gmapex...