I am using "haptic" joysticks and mice to experiment with using haptic feedback in musical instruments. The joysticks are capable of forces, damping, and vibration. The mice are capable of pulses and vibrations.
It is dark grey with light grey buttons. Its kind of a crappy mouse, but it vibrates.
There are some sites with more information about the iFeel protocol:
The forces are quite strong, but it seems to have a bit of noticeable latency. It is not super sensitive.
Apparently, "it is very massive and not very sensitive." But I haven't tried it.
This is supposed to be well supported, but I don't have one, so I don't know. It is apparently "sensitive, but with very weak force feedback."
ifeel Linux kernel module
Haptic: Refers to all the physical sensors that provide a sense of touch at the skin level and force feedback information from muscles and joints. [source]
$Id: index.html,v 1.6 2006/11/26 23:26:26 hans Exp $