It supports communications with Windows CE, Psion EPOC32 and the Newton 2000. Coming soon will be support for the Palm Pilot. Another feature that IrDA can provide is the ability to connect to the latest GSM phones which are common in Europe and are starting to appear in the United States. This is done as if the phone is a modem and IrDA is used instead of a cable. This requires an unsupported registry change which is documented on Arne's Windows CE Website.
Some desktops do to.
If your desktop does not, you can add it from Extended Systems Jeteye PC or Aegis IRCE . These drivers are supplied on the Windows CE Services CD under the Optional Components. You can only install this driver on Windows 95. Microsoft does not offer a corresponding driver for Windows NT, however Extended Systems does - QuickBeam . Once you have the IrDA driver installed, you need to configure Windows CE services to use the virtual com port.