I like what you're aiming for so keen to get involved. Have sent a PM to discuss some points, but had some time this morning so knocked up what I think would be a more fitting brand.
http://i66.tinypic.com/2550ub9.pngFurther to previous design here are some more concepts for the icon itself. See below for the general idea of how A is combined with Z.
http://i63.tinypic.com/2jchfso.jpg
