The most obvious feature of any Palm-like device is the Graffiti writing system. Contrary to devices like the Blackberry which use a small (and fast mind you) keyboard to enter text and characters into the unit, the Visor Prism uses a touch sensitive screen, stylus and a custom manner of writing. Called Graffiti, the characters are based upon traditional mannerisms of human writing and shorthand. Thus the device places most of the onus on the user to learn the interface language.
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