Amazon.com has an API that lets you make purchases and things. How difficult would it be to basically glue one of the bitcoin exchanges to amazon's API so that you could automate the currency exchange? Assuming someone had an account with a currency exchange place, it would go something like this:
1. A firefox plugin or similar adds a "Buy with BTC" button to every amazon page
2. User clicks 'buy with btc' button for an item, and is taken to the btc2amazon.com site.
3. User sends btc2amazon the appropriate amount, as well as providing shipping details
4. btc2amazon waits for transaction to clear, then makes purchase via amazon with provided shipping details.
Basically what coincard does, but just make a plugin (like a greasemonkey script) that integrates it with all of Amazon.com . . . thoughts?
Seems doable and would be great if you could pull it off.
Obviously the buyer will lose a couple percent in the transaction but it shouldn't be that bad.
I like the idea.