This demonstration shows how to build a system that allows employees to enroll for benefits over the phone. The application uses the QuickFuse interface and a SOAP API. You must sign up for a free QuickFuse account to access this application.
Most mashups try to solve a complex problem in an innovative way, and therefore save us all time. However, sometimes a mashup solves a very simple problem in an interesting way. Either way, I love to see innovative new uses of APIs like this one from Brian Beermann, which controls his garage door using the Twilio SMS API, some hardware and a lot of creativity.