Now that we finally have confirmation a new Nintendo DS is on the way – with 3D no less! – we’re also free to wonder what the new device might look like. And as mind-blowingly successful as Nintendo products have been, they’ve never exactly exuded sexiness. Well, designer Mario Troise has a solution for old Ninty with this drop-dead gorgeous rendering of a possible DS that makes the line between the handheld’s eponymous dual screens invisible. Sure, it’s got a decidedly ‘Macbook feel’ to it – but is that really a bad thing? As sleek as the concept is, it also contains some great ideas, like a 3D projecting…