I use to work at a travel agency, and Disney has been pushing this *really* hard since mid-2013 with their partners. I think it's an awesome idea and the perfect place to get all sorts of people used to technology that they'd be uncomfortable with anywhere outside Disney.
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If you've read Magic Kingdom from Cory Doctorow, im afraid the wristbands will start tracking reputation to pay for things! :)
The future plans for these are great. Eventually will allow you to enter info before going and cast members will be able to see small blurbs; so for example a Princess character can mention something about a family pet, or see recent rides or shows you may have seen and reference them.
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It's hard to look at this and not think Apple Watch. I imagine the watch doing what the Magicband does for the real world. It'll just be a bit longer to get there.
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