Wireless terminals have been available for a long time. Verifone has sold thousands of wireless terminals with a built-in GPRS and ethernet. You can easily find

Wireless terminals have been available for a long time. Verifone has sold thousands of wireless terminals with a built-in GPRS and ethernet. You can easily find them for less then $200 and are purpose built for retail. http://www.verifone.com/countertop/vx510.aspx http://www.verifone.com/countertop/vx510.aspx The last thing I want to do is to hand my $699 iPhone over to a customer, especially with a usb attachment or delicate accessory in it's headphone jack....