Nokia has applied for a patent on tattoos that would vibrate when your phone was ringing or the battery was running low.
To dismiss the alert, which would feel like a tingling sensation, the user would simply have to scratch their arm, according to the US patent, the Telegraph reports.
The tattoo would be made using metal ores, or ferromagnetic ink, which could detect magnetic fields and 'sense' when your phone was ringing.
http://news.ninemsn.com.au/technology/8438613/nokia-patents-vibrating-tattoos
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