As I understand it, the Casio watch can only send IR, not receive, right?

The whole point of the Timex Data Link is for the watch to receive your phone numers and PIM information from the computer. In the case of the Data Link, it does it by using a tiny CCD to read bar codes displayed on the CRT by the software. It looks really cool. I agree that IR sounds like a more logical way of doing it, but when the data link came out, IR wasn't a standard thing on laptops, and it's still not a standard thing on desktops. The coolest part of the Data Link was that it needs no hardware connection to your computer in the form of a serial cable, IR adapter, or whatever. It just uses the existing screen.

Tony Fabris
Empeg #144