'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
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Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
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There's an "anti-smartphone" called John's Phone which can only make and receive calls.
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A young programmer offered a homeless man the choice between $100 cash or coding lessons. Leo Grand chose the lessons, and now his first mobile app is available to download for $.99.
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