There are lessons here for anyone creating digital products, whether entrepreneurs or corporate product teams.

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There was also nothing here for anyone more interested in songs rather than the minutiae of McCartney's family life.

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Another reason why it is such a relationship business is because there are no standards here-anyone can be a consultant.

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There is a challenge here for anyone who would put forward alternative approaches to prove that the numbers add up.

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But if there's anyone out there who doubts that it can be done, then I would urge them to come here to Philadelphia and to see what you've done here. (Applause.) I would urge them to see the difference that we can make when government and businesses and community groups and ordinary folks come together to tackle a common problem.

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But - in case anyone needed any reminding - there are other things going on here.

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So here are a few suggestions of what is out there for anyone who does not need their phone to be too smart.

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