[Steve B.]

Hmm, most recent update has still not come to the older tablets.
I contacted Amazon about the issue, but they were not able to provide a solution after passing me through several 'support technicians'.
They asked for my phone number, and two hours later I have not heard from them.
At one point they stated I needed to contact the developer, of course I stated that I had already contacted the developer!
Luckily, I can still 'side-load' the .apk I can develop from the tablet(s) that can/will update from Amazon.
Needless to say, this episode makes me wary of making app purchases from Amazon.