Now your iPhone can accept Amex, or other credit cards, with Square!

The iPhone is now credit card compatible.  A company by the name of Square has designed a credit card reader that plugs into the headphone jack, enabling you to accept credit cards and debit cards on the fly.  Square then transfers daily deposit to your bank account.  The card reader and shipping are FREE; so is the application that runs it.   No monthly fees and no commitments. What you pay for? A swipe fee of 2.75% per swipe.  

The reader accepts Visa, Mastercard, American Express and Discover cards. Get yours FREE at https://squareup.com/