Lightroom :: GPS / Country Code

1.  If you import an image with GPS data, Lightroom 4 will add appropriate values for Sublocation, City, State/Province, Country and Country Code.  Is there a way to add this data to existing files while retaining history?
 
You can write metadata to files ([Ctrl][S]), remove those files from Lightroom and then synch folder to reimport them.  That reimports them with all modified settings but without their history. 
 
2.  Is a google map link available for a GPS location of a photograph?
 
In Lightroom 3, you could click on the GPS location and that took you to a Google map page with a specific web link that you could then publish, eg on a blog.  You can copy and paste the GPS location into a Google map page but that does not give you a web link you can use.
 
3. Is there a way of publishing a map?
 
Is there (or will there be) any way of exporting a map page, say as a jpeg?Is it OK to take a screen dump of a map page and publish it, eg in a blog?