as discuss before (http://www.zenphoto.org/support/topic.php?id=10747
), my new responsive theme is ready.
you can see it in action here : http://bootstrap.vincentbourganel.fr/
I have some packaging to do, but it should be downloadable in few days.
Thanks in advance for your feedback!
Please report bugs on the Zenphoto forum and I will try to fix as soon as possible.