"This is grocery shopping 2.0," said Jason Gissing, the former Goldman Sachs banker and Ocado co-founder, who this week launched an iPhone application designed to make shopping for Ocado groceries easier than ever - at least for those who own an iPhone.

"It will offer a huge benefit to many of our busy customers," he added. "We like to think we're making world class service and superb value more accessible than ever."

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