The world is trying to get rid of Flash and so is Android. So, good luck with that.
One thing to be aware of with a rooted Nook. I had registered my Nook to my home email account. When I installed Google Play, I had to enter my account info. So, I used my GMail account info from my phone. I assumed if I made a purchase in the Google Play store it would use the credentials I had to enter to start Google Play. Nope! It created a new Google account using my home email. The game I bought, I can't install on my phone now because it's a different account. And I can't move it to my GMail account either.