ViewSonic on Friday announced a slew of new smartphones and tablets set to debut at Mobile World Congress, SlashGear reports. The company’s Android-powered ViewPhone 4s looks to compete directly with Apple’s iPhone, featuring a 3.5-inch 960 x 640-pixel display with 326ppi, Ice Cream Sandwich, dual SIMs, a 5-megapixel camera and a VGA font facing secondary camera. ViewSonic’s two other smartphones, the 5-inch ViewPhone 5e and 3.5-inch ViewPhone 4e, will run Android 4.0, support dual-SIMs and the latter of the two will sport a 650MHz processor. In addition to the three new smartphones, ViewSonic has announced three tablets: the ViewPad G70, the E100 and P100. Read on for more. The G70 features a 7-inch 1024 x 600-pixel capacitive IPS display, 1GB of RAM,