The number of megapixels (millions of pixels) that a camera is capable of shooting pictures at is only important if you plan on scaling the images up to say A3, A2, A1 or A0, like small to large posters for instance. But of course, a camera that only shoots pictures at less than 3.2 megapixels is not going to be very flexible when it comes to printing. Also, the number of megapixels is not the only important factor to consider when buying a camera. Different camera use different quality sensors and other components. So really you need to be reading reviews of the cameras/camera-phones and seeing if the majority of people like the picture quality.