Apple iPhone 4 mobile was launched in June 2010. The phone comes with a 3.50-inch touchscreen display offering a resolution of 640x960 pixels at a pixel density of 326 pixels per inch (ppi). Apple ...

It didn't take the Notion Ink Adam long to become a sensation - its unusual design, custom user interface and dual-mode Pixel Qi screen were just some of the features that stood out compared to ...