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7/8/2011--Seattle, WA, USA..Danielle Wood(left), a salesperson at Nordstrom's downtown Seattle store, rings up a sale using a mobile device with a customer, Rachel Canning (right) by swiping a credit card through a reader attached to an iPod Touch. Clerks at Nordstrom walk around with mobile devices ( iPod Touch) and check out customers wherever they're sitting or standing, sending e-receipts...©2011 Stuart Isett. All rights reserved.