$0.75/100 messages, seems pretty competitive
Dear Amazon SNS Customer,
We are excited to announce that Amazon Simple Notification Service now supports SMS text messages as a new method for notifications. SMS (also known as Short Message Service) is one of the most widely used messaging applications in the world. With support for SMS text messaging, Amazon SNS messages can be delivered to SMS-enabled cell phones and smart phones.
hy, it outprices twilio, going to try it out