[DonHopkins]

The most important thing that distinguished the Lisp Machine keyboard was that it had dedicated parenthesis keys. According to my sources, that was so you could hold a Hefty bag of nitrous oxide in one hand, and type s-expressions with the other. (Gumby can you verify this? ;) )

[lispm]

I have a new style Symbolics keyboard. This one has a very sharp front and a heavy metal body. From time to time it serves well in a guillotine, executing obnoxious unix weenies with a Lispm keyboard.