Got to agree with Margret. I use the Asus transformer with the keyboard dock. its awesome for just about anything. Had it for 6 months and I cannot fault it.
Yes, B4a developed apps will work on the Amazon Tablet
You just need to become a developer with them
https://developer.amazon.com/help/faq.html
It's a simple signup, not sure if it's USA *only* based or international developers too though..
Are you able to control the infrared with B4A?The Vizio 8 inch tablet, available at Costco for $189.99 is a good deal. Nice size screen, makes developing a lot easier. Mine works well, the screen is bright and sharp!