Today's battle Arduino™ vs. Arduino® is missing a major point. Who were the real pioneers who made it all possible?
Wiring was developed as a thesis by Hernando Barragán and provided the framework used by all the boards. The Wiring framework is fully documented with a whole site Developers Reference. Wiring is currently working on the next generation object-based framework, Wiring++.
The Real Pioneers, Processing and Wiring