Let's hope that the competition between Amazon and PayPal results in some significant value for the consumer/user/business users. Years ago, when I first built my e-commerce site, the only viable payment method that could be easily integrated was PayPal. Unless I wanted to pay a significant premium to have a payment gateway before I was ready to take on those initial sunk costs, PayPal was the most attractive and likely solution.

Hopefully, the industry will shift as more options become available and user-friendly. PayPal has the advantage of name recognition, but Amazon shares the same, and frankly, I personally regard Amazon more positively than PayPal. Hopefully, the industry continues its trend, now a quasi-oligopoly and eventually monopolistic competition.

Like others have mentioned, I too wonder how they are going to divvy shares.