The Aakash 2 tablet is a “significant improvement” from the first version, which was criticized by users for its slow processor and resistive screen, Suneet Singh Tuli, president and CEO of Montreal-based device maker DataWind, said Tuesday. Singh Tuli said in a phone interview that the new tablet, released in November, has a more powerful processor, a more advanced touchscreen, 512 MB of RAM, and runs on Google Inc.’s Android 4.4 operating system. He said the first Aakash tablet had 256 MB of RAM and ran on Android 2.2. “Since it’s almost the latest version of Android, the applications that you can run on them are very very broad-based,” he said. In...