Matt Hartley @ Itmanagement has an interesting article about open source hardware (I found it because of the MAKE mention). Worth a read, post your thoughts in the comments –
With open source software becoming a household name, another open source movement that may one day see some fanfare is already taking shape. Open source hardware, which I once thought to be little more than a pipe dream left over from a bygone era, is proving to be a dream that it is very much alive and growing.
Open Source Hardware: Birth of a long tail market? Link.