A typical PDA, at this time, offers touch screen for data entering, but there is more to this little wonder than meets the eye. They also have a memory card slot for the storage of data alone with one or more of the following: a directional pad and either the numeric keypad or a thumb keyboard for input using softkeys, IrDA, Bluetooth and/or WiFi. However, many PDAs (typically those used primarily as telephones) may not have...