This might nicely augment the usual keyboard + mouse UI.
The IBM/Lenovo Thinkpad has featured a "nipple" for ages. It responds better to manual stimulation than sucking though.
https://en.wikipedia.org/wiki/Pointing_stick
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The IBM/Lenovo Thinkpad has featured a "nipple" for ages. It responds better to manual stimulation than sucking though.
https://en.wikipedia.org/wiki/Pointing_stick