Calibration will be part of the initial setup 
proceedure.  Just like date and serial number.  All touch devices for 
example the Jornada work like this.  Well, except for ours 
currently. 
Granted, manufacturing is ultimately going to need 
under the hood now and then.  This will probably involve something more 
drastic though, like a magic PCMCIA card or 
something. 
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