Viewsonic's ViewPhone 4s was on hand at Mobile World Congress and we couldn't help but stop and check out this surprisingly likeable handset. First off, the 326ppi 3.5-inch IPS display is beautiful, very beautiful. Other notables include dual SIM support, a 5-megapixel camera, a front-facing cam and 4 gigs of storage that can be augmented via an SD card. The housing wasn't complete in the handset being shown, though the design is pretty sharp with the inclusion of a trapdoor on the bottom which folds open to reveal a SIM tray and the spot for expansion memory. The interaction with the Android 4 OS was really fast and perfectly smooth with