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Square Mobile Payments Now Available for iPhone

Square has updated their app to provide universal support for both iPad and iPhone/iPod Touch devices. Square is an interesting mobile payment processing application for Apple's mobile devices that allows anyone to accept credit card payments. While other mobile credit card processing apps already exist, Square is targeted at both individuals and business -- small or large -- and does not require a merchant account.

Square is a free app that interfaces with the Square credit card reader which plugs into the headphone jack of your mobile device. Square will send the reader free to anyone that signs up. Square then charges a percentage of the sale plus 15 cents. There are no monthly minimums or setup costs. More information is available at SquareUp.