The changes look good.  I saw that you added OpenLayers to the svn.  With OpenLayers licensed under a BSD-style license rather than GFDL, is it okay to distribute the code with our extension?

I expect to have time to work on the code over the next few days.  I might work on developing custom OpenLayers controls that work suitably when the maps are small, and work on how they are laid out.  I can also work on the pop-up map and on the WMS support.

-Aude