There are two kinds of people in this world -- those who love Krispy Kreme doughnuts, and those who are wrong. For those in the former group, there's now a "Hot Light" app for Android. Using sophisticated doughnut technology, it triangulates your position relative to nearby Krispy Kreme eateries and then notifies you whether the "Hot Now" sign is on -- and it'll alert when you the switch is thrown. It is simultaneously the most happy (for when that sweet, sweet notification...

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