The new Apple iPad 2 is rumoured to have a QXGA screen resolution, 2048x1536 pixels, which equates to 3.15 megapixels - the highest non-widescreen resolution currently on the market.
That's four times the screen resolution of the current iPad, which can display 1024x768 pixels on a 9.7-inch LCD screen. The picture below shows how the current iPad will compare with the rumoured super high resolution model.
One issue that will immediately crop up is the availability of content to use the millions of pixels available; some might argue that watching a photo at one million pixel or at three will not make a big difference.
Ditto when you are reading a book or a magazine. High resolution fonts and pictures are relevant to a certain extent after which they become distracting, almost cumbersome; especially when you have to download them on the move.
Text on current websites will appear so tiny that users will need to zoom in to read the content while video from iTunes' which are available at 720p will have to be resized to be viewed.
Ultimately, the resolution is not the problem, the screen size is; the iPad will pack more than 80 per cent of the pixels on a 27-inch iMac display into around one ninth of the surface area. Why hasn't this been done before?
Because there were no need for something that extravagant. The pixel density on the iPhone 4 was only marginally higher than say the HTC Desire while the iPad 2 promises to double the pixel density of existing tablets.