prerequisites: a server with libgtk 3 and broadaway installed (I use an Ubuntu 13.10 desktop with an ssh server on it)

steps:
-install broadaway http://www.webupd8.org/2013/06/how-to-install-gtk3-with-broadway-html5.html 
- check if web apps are working
https://launchpad.net/~malizor/+archive/gtk-broadway
- run first the "broadaway" command from the terminal, and then
"GDK_BACKEND=broadway UBUNTU_MENUPROXY= LIBOVERLAY_SCROLLBAR=0 gretl"
- on the android device use google chrome and connect to 127.0.0.1:8080
-enjoy.
Some screenshoots :)