Good news, everyone!
I recently did a change so that whenever you place the grid on the map the URL on your browser location bar changes and is copy/paste compliant. What's even better is that it doesn't break the old url scheme but redirects to the new one.
The URL is now like
http://www.venhola.com/maps/geo.php#...780275752547,5
where the first value in the comma separated list after hash sign (in this example 24.87101620780233,60.22780275752547,5) is longitude, second one is latitude and last one is rotation (in degrees).
The link providing "L" button still gives out the old URL format but as explained above, is turned into this new user friendly format. Enjoy, folks!