This project was accepted into Google Summer of Code for 2013. Hopefully, at the end we will have the possibility to use Inkscape to draw electronic schematics and design the pcb with no restrictions regarding to shapes - you can be as creative as possible.
Inkscape can already be used as a CAD application for generating g-code sources for CNC Routers, thanks to this plugin. So, "Electronics CAD" is what is missing to have a complete solution for homebrew PCBs.
Can't wait to test it when it is done!