For many things you just can't beat a dedicated tool designed for the task at hand. Which may well explain why the spork is not a staple in every home. One ph

For many things you just can't beat a dedicated tool designed for the task at hand. Which may well explain why the spork is not a staple in every home. One physical calculators have over virtual ones would be the muscle memory aspect of interaction that is far harder to gain with any virtual touch screen affair. Aspect of UI distraction like that, however small, do go a long way.