The Nov 19, 91 MacWeek, page 38, has an article announcing the GyroPoint,
a 6D mouse using gyroscopes. The weak article doesn't explain if the 
gyroscopes are optical or mechanical, though there's an ambiguous mention of 
an "optical scensing surface". The mouse weights 5 OZs and plugs into Apple's 
Desktop Bus and IBM PC's. Available "early next year" (probably means Nov 
instead of Dec 92 :-)  Developer's version is $1K. 

The address is:

      GYRATION Inc.
      12930 Saratoga Avenue
      Building C
      Saratoga, CA 95070

      phone:    (408) 255-3016
