The Square credit card payment application is now available for the iPhone and iPod touch.
Accept payments. Everywhere. Quickly and securely accept payments for your business, service, charity, or even your couch. Generate email and SMS receipts for cash and card payments, maintain frequently sold items and calculate sales tax with the iPad, and effortlessly manage and visualize all the money you take with an intuitive web-based interface.
What's New In This Version: New version includes support for iPhone and iPod Touch.
You can download Square from the App Store for free.