Is it possible grid in overlay mode over the meshes in orthographic view?

Hi.
I’ve been playing around with this great Carve MT addon:
http://blenderlounge.fr/forum/viewtopic.php?f=26&t=1534&start=60#p27697

It would be very helpful in Blender be able to see the grid in orthographic view (I do not mean floor grid) superimposed over the meshes (not behind the mesh). Obviously all this without using Wireframe view.

Is there any way to do that?