FleXslide
FleXslide combines the best features of a keyboard with character recognition methodologies. A character is input by touching within a text area and, if necessary, sliding in one of six directions. The result is a simple character recognition system that has the strengths of a keyboard.
Remote Keyboard
Remote Keyboard is a program that connects PC keyboard and mouse to your Pocket PC over ActiveSync connection or TCP/IP network. It works as a Soft Input Panel (SIP), also called input method, along with Keyboard, Letter Recognizer or Transcriber in Pocket PC devices.