Stuart,
 I am not sure what you refer to as a computer guide?  A hand held mobile
computerised information stick?. Introductory desk top compouter terminal with
gallery mapping / exhibit  information?

I observed the latter in action at the Stavanger Archaeological Museum during
the ICOM conference. An effective introduction with appropriate graphics. The
only problem was that a child monopolised the terminal for a full hour and a
half. Rather negated the flow of information to other visitors I think you'll
agree.

The main advantage of computerised information for the public seems to be the
ease in which museums can alter their events / exhibition database .

Let me know what responses you receive on this topic.  It is something that I
too would like to consider for the future of our museums.

best wishes
Roger
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