Technology giant Microsoft has unveiled its third- generation Surface Pro 3 device with a larger surface area than its previous model but weighing lighter than a MacBook Air and expects it to replace laptops. The launch of the 12-inch Surface Pro 3 in New York city on Tuesday comes less than a year after Microsoft brought out the Surface Pro 2, which received positive reviews for being a powerful PC inside a tablet form factor but has struggled to gain traction in the market. The company announced the launch at its "small" Surface event, but didn't launch the Surface Mini rumored to debut at the presentation. "This is the tablet that can replace your laptop," said Panos Panay, corporate VP of Microsoft. Microsoft has its eyes set on getting business professionals on board with its new design. "Surface Pro 3 is a tablet and a laptop: multiple processor, RAM and storage options intersect with a sleek design that, with a simple snap or cl...