AOSP or Not

Again, while Android’s source code is available, it is not as open as Google would like you to think.

Historically, it appears that shipping one non-Google device will get you kicked out of the Google ecosystem. So if Amazon’s phone makes it to market and doesn’t run a Google-approved version of Android, HTC could be banned from future access to Google apps.

http://arstechnica.com/gadgets/2013/10/report-amazon-and-htc-team-up-to-build-smartphones-risk-ire-of-google/