As I mentioned in my last entry, the recent update to the Google Maps static API menas that finally it was time to release the new version. As you can see in the version log the feature to use a preview inside the editor was added some months ago, but it only worked for hybrid maps, it was slightly confusing, so in order to avoid wasting the time replying over and over again (yes, there is people that doesn't read the docs and even ask how to install this plugin) I decided to not release it except for the people that had cooperated in its development.
There's still a difference between the final map and the preview: the static api doesn't allow to use encoded (compressed) paths, so until they fix this issue the path won't be shown. Yes, I could get the points and generate the path, but I think that it's more work that it is worth, after all this is just a preview inside the editor
Check it in the demo and upgrade your version, it's a drop in replacement.