Thought Canon was done with the point-and-shoot updates after refreshing its ELPH lineup last month? Think again, as the company is updating its PowerShot A-Series shooters with six new models in a variety of colors. All the cameras pack a 16-megapixel sensor, 28mm wide angle lens and can take 720p video. First up is the A4000 IS, which brings image stabilization, 8X optical zoom and a 3-inch LCD for $200 later this month. The A3400 IS and A2400 IS make their debuts in March, and bring the same image sta
