You have seen dual-SIm phones. Perhaps triple-SIM ones. A thin possibility for four-SIM mobiles (pictured above). Now, imagine a phone with 12 SIM slots. Disclaimer: If your head short-circuits from trying to, Mobility or its agents and writers cannot be held responsible.
Still, if the idea intrigues you, what exactly would you do with a 12-SIM smartphone. A few people already suggested Yahoo-Yahoo. Over to you!
PS: There are rumours that one manufacturer has plans for a 12-SIM phone. Shhhhhhh.