Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!brutus.cs.uiuc.edu!apple!motcsd!motsj1!mcdchg!ddsw1!tronsbox!akcs.bluebeard
From: akcs.bluebeard@tronsbox.UUCP (Bluebeard)
Newsgroups: comp.sys.ibm.pc
Subject: Infared linked keyboard/mouse for either Mac or PC
Message-ID: <25def66f:101.1comp.sys.ibm.pc;1@tronsbox.UUCP>
Date: 18 Feb 90 23:03:00 GMT
References: <5539@sbcs.sunysb.edu>
Lines: 1

I've come across just such a product in a mail order catalog from Tiger
Software. It's called Manager Mouse. I hope that's of some help.