Last week, owners of Amazon.com's (NASDAQ:AMZN) Kindle Fire tablet computers were pleasantly surprised to find themselves in the possession of 500 brand new "Coins" -- a new, virtual currency developed by the website for use on the website... and nowhere else.

Is this a good idea for Amazon? Opinions can differ. But if you play your cards right, and don't play by Amazon's rules, there's at least one way that Amazon's Coins could be good for consumers. Listen in as Fool contributor Rich Smith lays it out for you.