I'm writing about '2-years-post-raspberry-pi' period when a plenty of "clones" started popping up. I say clones in quotes because they mostly shared just a form

I'm writing about '2-years-post-raspberry-pi' period when a plenty of "clones" started popping up. I say clones in quotes because they mostly shared just a form factor and started innovating pretty quickly with both form factor and features.