Earlier in October, the Upverter team released the Hardware Product Canvas.
Despite the usefulness as a tool for design is maybe questionable, the canvas helps focusing on all the components in an early hardware project:
This is the Hardware Product Canvas. It’s a tool designed to help you get through the earliest stages of a hardware design. It’s open-source, creative commons, and totally hackable. We encourage you to take it, hack it and use it for your next hardware project or at your next hardware event.
via The Hardware Product Canvas – Upverter Blog.
