Here's the youtube demo: Amex Sync On Twitter - American Express - YouTubeThe announcement that Twitter now offers a fully integrated payments service on its platform via American Express doesn’t come as a real surprise. The logical extension of both companies’ existing collaboration just makes sense, and is in fact good news.
The US card mogul started integrating with major social networks a while ago, including Facebook and Twitter. Amex’ Twitter Sync already allows customers to be eligible for discount deals when they tweet special offer #hashtags. To enable that service, users have to connect their Twitter account to their Amex credit card account.
Now, American Express has taken this one step further so that Twitter users can also make a direct payment. When Twitter users tweet a purchase hashtag, they receive a response from @AmexSync with a confirmation hashtag, which they need to retweet within 15 minutes of receiving it to confirm the purchase.
The card company then sends details to the merchant who ships the product to the account billing address synced with Twitter. Payment is taken from the synced Amex account.
Very basic and limited right now but I think we all know where this is headed.