General Square Card Processor, or Paypal Here?

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http://androidforums.com – I'm evaluating using a Kindle Fire HD 8.9 (likely rooted) as a giving kiosk for my charity. I would likely use a Square or a Paypal Here card swipe. Because of the proprietary twist on the OS, neither of these services are supported on the Kindle Fire. I would like to know if anyone knows, or would be willing to test if the Square or Paypal Here apps install and function on a rooted Fire. Any other advice would be greatly welcome. (General)