Leon is Open Source enthusiast and active member in Hackafe (the local hackerspace) and TuxCon.
He is mostly involved with software development, but recently made his first steps in hardware designing Raspberry Pi add-on board he named RabbitMax. Here is the GitHub repo.
He is running successful Indiegogo campain and made 65% funding out of his humble EUR 512 (! how this number came to his head is mistery for me??) goal for 3 days!
You can be sure you will have unique board as he is soldering them all by himself, it’s like personal signature!