ViewSonic has outed its Mobile World Congress line-up of smartphones and tablets, and with the Android-powered ViewPhone 4s running a 3.5-inch 960 x 640 display it's clear the iPhone 4S is the company's key target. The ViewPhone 4s matches Apple's smartphone with a 326ppi IPS display, but squeezes in twin SIMs and a copy of Ice Cream Sandwich, along with a 5-megapixel camera and a front-facing VGA webcam. It's not the only new ViewSonic device, though; read on for more.
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