Free for today (12/28/2011) only! You will have to download and install the Amazon App Store on your phone or tablet if you haven't done so already. Go to:
Settings>Applications>Check off "Unkown Sources".
Then check your email/text to download the Amazon App Store and get the Monopoly App. It has some iffy reviews but it is a classic board game. Try it out and let me know what you think!
Enjoy, and live free!