It Changes the Bitcoin Future in a perfectly direction, when Amazon start Ebay will follow soon..
Oh...common.... We all know that Ebay will never accept Bitcoin. Paypal is 100% owned by Ebay. If Ebay allows Bitcoin, which is a competitor to PP, then it can ruin Paypal. Amazon is theoretically possible. But I have no such dreams about Ebay.
I still think it's possible, if Paypal uses bitcoin as a mode of payment on top of visa/debit/echeck, they can charge the same fees they already do, Ebay charges a fee as well for selling, they would not lose out, the credit card companies may though if they do that..