Look, all this arguing really makes me sad. IANAL, but: If the authors ask for money for the SDK, I believe it is really fair to comply with that.
You're just stating "arguments" to go cheap. No, sorry. P96 was good work, and it deserves some monetary feedback if the authors ask for it.
Consider how you would feel like: You created a piece of art, and all you hear from your neighbours how to get hands on it without paying. Do you see what's wrong here?
+1, we're a small but passionate group so lets support each other and especially our developers/ hardware manufacturers:hammer: