A little while ago ignoblegnome (IG) did a review for me on my version of a minimalist Arduino clone designed to be used for prototyping and finished projects. The board design allows the Hobbyduino Mini to be used on a breadboard by soldering pin headers to the I/O sockets or in a finished project by attaching wires. IG also passed along some great suggestions for future versions. I took the suggestions he made and modified the original design. Below is the 3rd revision of the Hobbyduino Mini.