Input (keyboard or stylus)

Input (keyboard or stylus)

The handwriting-recognition capabilities of Palm and Windows Mobile devices have improved over the years, and all PDAs that support handwriting recognition come with a virtual hunt-and-peck software-based keyboard. Some models with integrated thumb keyboards still support these traditional touch-screen input methods. However, Palm's Windows Mobile- and Palm-based Treos (phone hybrids with integrated keyboards) do not support handwriting recognition even though they have touch screens. Nor does the BlackBerry OS. Many users who want to use a PDA in place of a notebook have turned to one of several third-party add-on keyboards.