In an effort to expand beyond simple online deals and discounts, Groupon today unveiled an iPad-based checkout platform called Gnome. The tablet is disguised in a chunky plastic exterior and allows shop owners to identify voucher-toting customers from the moment they walk through the door. Using the Goupon app, users will have their details beamed to the cashier over Bluetooth – they simply have to give their name when they reach the till. Gnome is designed as an “all-in-one cash register,” so businesses will also be able to process credit and debit card payments and, in the future, integrate recognized...

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