Thanks to Jeff Warren, over at Public Labs, for pointing this out--a new book on open source hardware (link is external).
Join the conversation! The forum activity is now at GOATeach.org! (link is external) We are working to cross pollinate our conversations. Document and share tools at farm hack and talk at GOAT! Also join GOAT riot (link is external) and introduce yourself and your projects!
New e-book, Product Dev Process for Open Source Software