Today Apple revealed the third generation iPad with its Retina screen, bringing the most powerful mobile visual display to market with a whopping 326 ppi in its 9.7 inch space. Print resolutions typically range from 300 - 1800 dpi, which means that Apple has effectively brought mobile computing into that same realm, a significant step to say the least. There's no doubt that the e-reader experience on the iPad will be greatly enhanced, be it for books, magazines, or even PDF documents. And with a starting price point of $499 for its bare bones model, it's conceivable that the other tablet competition and dedicated e-reading devices like the Kindle and Nook could soon be in for a bumpy ride.