Earlier quoted context omitted.
The problem with Android based "alternatives" is Googles licensing. The licensing agreements for Googles apps require that Google gets to decide which android forks device manufacturers are allowed to sell if they don't want to be completely cut of from Googles ecosystem. So if you actually plan to use it for anything bigger you wont even be able to find a manufacturer willing to touch it, even Amazon had problems ge…
It sounds interesting but I cannot connect the dots. So, the Google-authored apps' use can become illegal in future on a specific ("bigger") fork of Android you say? But that's just the license terms of Google apps. I don't understand what would a manufacturer be afraid of, exactly? (Does Kindle need any Google apps?...)
Imagine yourself convincing Samsung to dump entire warehouses filled with Google (TM) Android phones and any chance of future success in that market in the trash over a handful of ebook readers. That is what Amazon had to deal with.